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The Clydach Murders: A Miscarriage of Justice

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John Morris’s new book is an investigation into the Clydach murders in South Wales in 1999 in which Mandy Power, her mother and two daughters were battered to death. Morris contends that, although tried twice, Dai Morris, the man convicted for the murders in 2006, is innocent. No forensic evidence or DNA connected him to the crime; his conviction was based on the lack of a solid alibi, the presence of his gold chain in Power’s house and the lies he initially told the police in explanation. His case is currently being reviewed and will be heard in the Court of Appeal, probably in 2018, in the light of new evidence, including DNA testing and falsification of police documents. South Wales Police was notorious in the period 1980 to 2010 for false convictions on fabricated evidence and the Morris case appears to be another instance of this. Significantly, previous suspects for the murders include former police officers, one of whom was having a lesbian affair with Mandy Power.

There is every possibility that the case is a miscarriage of justice. The author has corresponded with Morris, studied all the police files and court papers, discussed the case with key witnesses and experts, and is convinced that Morris is both innocent, and the victim of a conspiracy to convict him. The brutal murder of an entire family is a horrible event but to compound that with an unsafe conviction shows a disrespect to the victims, to their relatives, to the family of Dai Morris and to the law.

240 pages, Paperback

Published December 1, 2017

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About the author

John Morris

2 books12 followers
John Morris was born and brought in Northamptonshire, son of an aircraft engineer and headmistress of the local village school. John married Yvonne in 1976 and they have two adult children. A graduate in law, John attended Guildford College of Law prior to qualifying as a solicitor. He practised mainly as a criminal lawyer in Swansea for more than twenty years. In millennium year, John and his family moved to Yvonne's home country of Ireland, where he continued to practice law. Now retired and living in Wicklow with his wife, two cats and a dog, John continues to conduct historical research with an emphasis on the Whitechapel murders of 1888.

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Displaying 1 - 30 of 67 reviews
Profile Image for Chris Steeden.
489 reviews
June 24, 2025
I had not heard about this case before. In a small Welsh village, Clydach, ‘divorced mother of two Mandy Power (aged 34), her disabled and bed-ridden mother, Doris Dawson (80), and Mandy’s daughters, Katie (10) and Emily (8), were brutally bludgeoned to death by a calculating assailant wielding a heavy four-foot fibreglass pole.’ Two years later David George (‘Dai’) Morris, a builder’s labourer and known petty criminal was put on trial for the murders. ‘It was the worst multiple murder in the history of Wales.’ It was horrendous.

The South Wales police had a history for miscarriages of justice. ‘Between 1980 and 2000…nine murders investigated by the force had proved to be miscarriages of justice, and nineteen people had been freed after being wrongly convicted of crimes they did not commit.’ The author, John Morris, goes over some of the illegal activity perpetrated by the South Wales police to get convictions. ‘Between 1980 and 2000, thirty South Wales Police officers were temporarily suspended from duty as a result of using illegal and unacceptable investigative practices, but even where criminal charges were brought against them, no convictions resulted.’

Here we are in 1999. In that timeline the author has stated where there were multiple miscarriages of justice. He expertly goes over all the suspects, the victims and the entangled web that connects them all.

The author clearly puts across that Dai Morris was not the killer. He is a violent man of low intelligence that was prone to lying. ‘Dai Morris didn’t have a brain to clean up,’ said one of Mandy Power’s friends, referring to how the murderer left no evidence. This would also be reiterated by someone else. He was not well liked at all by the villagers. Quite an odious human being it seems but was he the murderer?

The case for David Morris being innocent of the murders in this book is pretty compelling. Then again, I have only this book to go by. On the evidence provided by John Morris on the murders it is startlingly obvious who is responsible and this is why the South Wales Police covered it up allegedly.
1 review
September 29, 2017
Having lived in Swansea my whole life, I have always been intrigued about the Clydach Murders and have always believed that Dai Morris did not commit this crime. In my mind, he simply wasn't capable of these horrendous murders and certainly did not have the intelligence/knowledge to clean up so well after the murders were committed.

I was so happy when I heard that his book was coming out during the summer, about time, thank you to the author! It's about time that this case is re-opened and that questions are finally answered about what really happened on that horrible day.

This book is exceptionally well written, and the author does not leave any stones unturned. I read the whole book in one day, could not put it down.

I really hope this book leads on to what it sets out to achieve - exposing the truth of the cover up undertaken by the South Wales police and FREEING DAI MORRIS, as I am more convinced now that ever that he is innocent. My thoughts are with the Morris family, I hope very soon they will have their father back.
Profile Image for Lenina Hayward.
1 review
October 2, 2017
Outstanding.

An Outstanding and well written book that clearly outlines Dai Morris as an innocent Man. From day one I have always said it was the Lewises and I truly hope that one day they will be caught and Dai Maris will go free. I just can't understand how the Lewises can live with themselves after what they have done nor can I understand why South Wales Police would convict an innocent Man and leave the real murders go free! I would highly recomend people who both agree and disagree with the verdict to read this book and decide for themselves who really slaughtered the three generation family. At the end of the day just because the Lewises were employed to uphold the law it does not make them above the law and putting a man in prison just because some members of the community disliked him for one reason or another does not make him guilty of such an horrific crime. .
Profile Image for Steve Payne.
384 reviews34 followers
July 26, 2021
My quiet little corner of the world (South Wales) isn’t known for its murders (and in this case mass murders), but what it has been known for - within the UK - are serious issues with regards to methods of conviction when serious crime has indeed manifested. The Clydach Murders (of 1999) followed a series of other murder convictions in which the methods used by the South Wales Police Constabulary were proven to be corrupt.

One of the best crime podcasts I have heard in recent years is ‘Shreds,’ which tells of the brutal murder of a woman in the Welsh capital (Cardiff) in 1988. A white man, covered in blood, was seen at the crime scene, but police decided to arrest five black men, three of whom were convicted. I can’t recommend this podcast highly enough – the methods used to make the convictions have to be heard to be believed, as does their methods of conveniently losing papers during the court case which followed, in which they themselves were in the dock.

The case of the Clydach Murders is involved and I’ll only broadly summarise. Clydach is in Swansea. In the early hours of 27th June 1999, a woman (Mandy Power, aged 34), her two daughters (Emily and Katie, 8 and 10) and her own mother (Doris, 80) were battered to death, with a 4 foot fibreglass pole being used as the weapon. Mandy Power was having a lesbian affair with ex-cop Alison Lewis, who was herself married to current cop, Stephen Lewis. Stephen Lewis’s twin brother, Stuart, was also currently serving in the police force. Alison and Stephen Lewis were the initial suspects and arrested (as was Stuart Lewis), but later released. Instead, the man charged and convicted of the crimes was David, or Dai Morris – a builder’s labourer, but also petty and sometimes violent criminal. He also, it seems, was having relations with Mandy Power.

Now, I’m not going to state whether I think the right person is behind bars, or not. I was not in court and so obviously not privy to all the details and everything that was said, nor the manner in which it was said. I would also say that any prior failings of the South Wales police in previous cases, and shadowy over-zealousness in this case does not automatically make for the wrong person being behind bars. I just don’t know. But having said this, on the evidence here, what is very easy to say is that the convicted person certainly did not receive a fair trial on either of the two occasions this went to court. Here is a list of just some of the issues:-

1. An e-fit identity picture was compiled from an eyewitness who saw a man in the vicinity of the crime scene. This was continually not revealed on media broadcasts, and the eyewitness was not even asked to make a formal identity from a parade. Not, that is, until 15 months had elapsed. Why? On finally making that identification she immediately picked out Stephen Lewis – to whom the original e-fit picture is a very good likeness (as it also is to his twin brother).

2. When the senior detective on duty that night arrived on the scene, he surprised colleagues by disappearing from the scene after less than 10 minutes. His whereabouts has never been satisfactorily explained, nor who he was telephoning from an untraceable public call box from within his police station. If he had nothing to hide, why didn’t he use his own office telephone? This was Stuart Lewis.

3. Why did interviewees change their accounts in subsequent interviews? These changes aided the police case against Dai Morris. Bribing con’s and badgering witnesses was a method familiar in the other cases at the time (listen to the ‘Shreds’ podcast). As were methods of withholding evidence that didn’t suit the police narrative of the case.

4. Why did South Wales police even continue with this long-running investigation when two of their current officers, and one former employee, were involved? They were suspects. They were investigating their own. With this investigation following a series of high profile wrongful convictions in other South Wales cases you would have imagined that the force would have been only too happy to have passed this on to an outside force.

5. Quite staggeringly, come the time of Morris’s court case, one of his own defence team was still seeing the Lewis’s – the other main suspects (whom he had represented when they had been arrested). This conflict of interest was tying the hands of Morris’s primary defence lawyer, preventing a pointing of the finger towards Stephen Lewis during the court case – whose own cross-examination was considered very lenient.

6. A bloody hand print at the scene of the crime did not match Morris’s.

7. Stuart Lewis was not questioned in court. He failed to secure the crime scene and his own log book is missing. Whether involved, or not, the fact that his actions remain a mystery to this day is one of the most bizarre elements of the entire story. For the life of me, I don’t understand why this crucial part of the story still remains an unresolved mystery.

8. The judge informed the jury to ignore the eyewitness account of seeing Stephen Lewis. The reason? He had an alibi. The alibi? His wife! Which perhaps leads to point 9 -

9. When the police provided a comparison photograph of Stephen Lewis to the e-fit for the judge, they provided a distorted image - making the photographic image of Stephen Lewis appear much thinner than the e-fit (this image is surprisingly not in the book, but is available online).

This well written book both informs and grips with its concise and detailed chronology of events. Given the many facts, I liked the occasional repetition of details to keep things fresh in the mind. At no point was I lost under the mountains of detail and information. The version I read is the second edition, which contains some new material. It’s an ongoing story in which the author is still involved and still receives messages.

As fascinating, gripping, and divisive as this story is, we should not forget of course that at its heart is the tragic and brutal murders of three generations of one family.
Profile Image for Colin Garrow.
Author 51 books143 followers
December 16, 2019
South Wales, 1999. Single mum Mandy Power, her mother and her two daughters are battered to death in the early hours of Sunday 27th June. Then, in a bid by the killer to destroy evidence, the house is set on fire. Unpopular builder David (Dai) Morris is tried twice for the murders and convicted in 2006, but author and solicitor John Morris, believes Dai is innocent. With no DNA evidence to connect him to the crime, it seems the wrong man is in jail.

This is a fascinating and utterly absorbing tale of an horrendous murder that, potentially, could have been solved soon after the crime was committed. John Morris reveals how South Wales Police covered up evidence that clearly pointed to the killer being from within their own ranks – one of whom was having a lesbian affair with Mandy Power. As well as ignoring important witness statements, the police withheld for more than a year a photo-fit image that perfectly matches two of their own officers (twin brothers). Along with a profusion of other evidence that suggests Dai Morris has been wrongly convicted, the author highlights how even Morris’s own solicitor helped put him behind bars through his own incompetence in representing a family likely to have been involved in the murders themselves.

A brilliant and unputdownable account that will leave you seething with anger at the sheer incompetence and corruption in South Wales Police force. A troubling and explosive book.
Profile Image for lianne murphy.
1 review
October 11, 2017
Many thanks to the author for highlighting this case.

Would recommend to anyone in the South Wales area. Makes for a compelling, yet objective read. I have no doubt in my mind that Dai Morris was framed and I hope this book brings about the successful appeal against his conviction. #INNOCENT
Profile Image for Ollie Thomas.
4 reviews
April 12, 2021
I have no idea how a man with so little evidence against him can be sentenced to life in prison for 4 murders, not just in one unfair trail but two, honestly baffles me, and how corrupt the South Wales police are and how many unanswered questions they're reluctant to answer. The law of "Innocent till proven guilty" clearly got over looked in this situation. Must read especially if you're from the South Wales area.
Profile Image for Ellie Thomas.
67 reviews
September 4, 2024
DNF - anyone know how to record that properly?! I am embarrassed by my first did not finish in a good many years but this is so poorly written and repetitive. God only knows how it’s so highly rated on goodreads. I don’t dispute the miscarriage of justice, or disagree with the principle of the book and what it’s trying to get across but this was painful and I decided life is too short. I’d give it zero if I could. Don’t pick it up folks.
5 reviews
Read
November 27, 2019
5 star reading....The books title is spot on!! I put my life that DM is innocent. I dont understand how all this evidence that has not been used, proof things have been destroyed that would all prove DM innocence...So sad and frustrating that the obvious 3 guilty people are living their lives and enjoying their freedom. Both books are a MUST read. #freedaimorris

put my life that DM is innocent. I dont understand how all this evidence that has not been used, proof things have been destroyed that would all prove DM innocence...So sad and frustrating that the obvious 3 guilty people are living their lives and enjoying their freedom. Both books are a MUST read. #freedaimorris
Profile Image for Annie Booker.
509 reviews5 followers
May 16, 2019
Reading the evidence presented at two trials I'm stunned this man was even convicted. A real miscarriage of justice in a tragic case.
Profile Image for Mwsh.
29 reviews
March 21, 2022
Well written but could be classed as one sided.
What I can say is that SWP should never have investigated this dreadful incident and the Lewis’s should have been arrested in early stages of the investigation.
I also cannot believe there has been no further forensic testing completed as part of the process of elimination but cost implications will be brought into that factor!!
But I know not much will be done now as Dai Morris passed away in 2021.
Shame as I think if you are going to investigate a Murder, regardless of the outcome, you just want to make sure it has been investigated properly and fairly.
Profile Image for Lisa Brown.
22 reviews
January 17, 2018
As someone who remembered the case well from the local newspapers at the time and from everyone talking about me. This was a shocking read, well written and incredibly well researched.
5 reviews
October 8, 2017
Makes you think!

My original opinion about this case was if DM was convicted twice then he surely must be guilty of this horrendous crime. After reading this book, my opinion has changed drastically. Evidence and witness statements that weren't used in the trial that should of been used and put to the jury in the trial is awful, I believe after reading this book, that if it had been used DM would have been found not guilty and other people mentioned in this book would of been tried in a court of law and found guilty. The wrong person I now believe is in prison whilst the guilty ones are free. That is a miscarriage of justice!!
Profile Image for Zoë.
4 reviews
October 8, 2017
How those people can live with themselves, is beyond me
Profile Image for whatnovareads.
114 reviews1 follower
November 27, 2024
I’m very late to the party here but I’m so glad my Welsh book buddy recommended this book. The writer tells the story surrounding the police investigation into the murders in Clydach and the court cases that followed. The story is littered with false accountants, police cover ups and withheld evidence that leads to the conviction of Dai Morris. It is shocking to say the least and hard to believe it’s a real story not fiction. A must read for all and top of the tbr for true crime readers.

This will sit in my Roman Empire bookshelf forever.
3 reviews
January 22, 2018
Couldn't put it down

Crazy but so believable that police will corrupt and destroy or fabricate evidence to suit them. Condolences to the family of Mandy. How can we trust a system that fails so many innocent people to get false results.
18 reviews1 follower
May 2, 2019
A fascinating read

As a local I was fascinated by this case that I remember civil as it it had happened yesterday, not an easy read but an excellent account of yet another miscarriage of justice.
Profile Image for Hannah Brooks.
35 reviews2 followers
April 5, 2020
First few chapters were great. Then it dragged on a bit so I put it down.
Profile Image for Jennie.
97 reviews9 followers
February 25, 2022
If someone wrote a novel where a police force suppressed evidence and protected their own, a defence team had a conflict of interest AND mounted the most woeful defence, where a mistrial was declared, where witnesses for the prosecution could have been shown to be at best unreliable, if only the new defence team had used previous statements against them in cross-examination, if the judge hadn't been so obviously biased towards the prosecution team in his direction of the jury, the novel would be dismissed as completely unbelievable. However, this is just the tip of the iceberg when it comes to the case of Dai Morris. South Wales police have a very poor record when it comes to miscarriages of justice, having been involved in a dozen over the last 20 years. It is uncertain who out of three possible suspects actually killed Mandy Power and her mother and daughters (the author leans very heavily towards one of the three; I am not entirely convinced), but I am certain that the wrong person was convicted and the killer or killers are still free.
Profile Image for Shell.
435 reviews14 followers
November 9, 2023
A non-fiction title which tells the horrific story of a Mother and her 2 young daughters who were killed in their home in South Wales. The Murderer tried to cover up the crime by burning the house down, but the fire brigade managed to put it out before it had really taken hold. A local man was tried and convicted for the crime, but we soon learn that family and ex-police officers were involved with the victims and the level of corruption that went on was shocking. The author presents a strong case that it was these people who would have had motive, opportunity and expertise to have carried out the crime and that the convicted man, though a disliked violent character was fitted up for the murders.

Profile Image for Hornthesecond.
397 reviews1 follower
August 17, 2022
I found this a very interesting read indeed. The book raises quite a number of good questions about the case, and it appears that incompetence alone is insufficient to explain the inadequacy of the original police investigation. It is impossible for me to know how many of the important statements made, which the juries and judges never had the opportunity to hear, are true, partially true, or false. There may also be some false claims in the book. Even so, the author succeeds in casting sufficient doubt on the conviction that it certainly appears unsafe, and by the end of the book an alternative sequence of events to that suggested by the prosecution actually appears to make more sense with respect to motive and consistency with witness statements, especially some of those statements which, for various reasons, were sadly not made available to the Courts.
100 reviews6 followers
December 17, 2017
This is a true story of murders in a village near Swansea in 1999. The author has meticulously detailed the murders, police investigation , the trial and the appeal trial. Like many murder trials there are many doubts whether the conviction was correct. The conclusion of the Author(an ex lawyer) is revealing ( I will not tell you his conclusion so I will not spoil the read or prejudice your thoughts before reading).

If you like true life murders than this book is for you, however it is so well written and detailed then if you haven't considered this type of read before you should try it.
3 reviews
February 15, 2018
Prior to reading this I only had an idea that something untoward had gone on involving police cover ups. Now I’m convinced that an innocent man has been wrongly convicted.
The author is a retired lawyer who started investigating the case out of curiosity. He provides a meticulously investigated wealth of information, easy to read and fascinating, considering South Wales Police refused categorically to communicate with him during his research. I could not put this book down!
If you are interested in English Law and/or miscarriages of justice then this is a must!
135 reviews
April 1, 2020
This I'd a most disturbing book. I have non reason to doubt that the hard work John Morris put into researching the events ,portrayed a gross miscarriage of justice.The South Wales police had an extremely bad record of unscrupulous proceedings. What is frighteningly clear, is the British Judical system failed to call the Welsh police to account. Right from the get go.it was clear the South Wales Police Force were neither fit ,able or wanted to follow the correct path.
I can only hope there is another ending tiny bus sordid tale
Profile Image for Amanda Jane .
759 reviews29 followers
January 5, 2021
My friend loaned me this book for my opinion. It didn’t look like my sort of book and I didn’t really know much about the Clydach Murders. I started it apprehensively, not sure what to expect and I found it to be absolutely outstanding.

It is written so well, and very obvious to me that an innocent man is serving a life sentence for something he did not do. One day the truth has to come out surely.

I can’t wait to discuss this with my friend over a cup of tea when we can. (Lockdown 2021)
Profile Image for Chrissie.
1,058 reviews94 followers
January 15, 2021
Firstly, we must remember the victims of this monstrous crime, which was incredibly brutal, and wiped out 3 generations of female family members. Truly tragic. This book centres on the two trials of David (Dai) Morris, both of which ended in guilty verdicts (although, the first conviction was overturned, giving rise to the second trial). Now, Morris shown to be the nicest of men, but the evidence out forward by the author really does make a very good case for a miscarriage of justice. It is truly shocking how this was allowed to happen - I can only hope that things have greatly improved.
Profile Image for Patrick Fay.
321 reviews6 followers
March 2, 2021
A well written summary of what seems to be a clearly wrongful conviction in a horrific murder case --Swansea South Wales. The police corruption is stunning as are the poor decisions of counsel and presiding judge that were likely blinded to ethical issues by the strong emotions and enormous media attention. The only bright side in a terrible story is that you will be sure when you are done that police corruption in the US is at least no worse. The Innocence Project likely has work to do everywhere.
1 review
January 21, 2018
Pigs taking care off pigs.

Once again a innocent man lies in prison rotting away for nothing, while the guilty are walking about,receiving tax payers money for their guilt, How obvious it beggars belief that it wasn't Dai Morris, but a pig(police), and that head pigs can't have that,one off their own going to the slaughter house,
Profile Image for John Smith.
1 review
September 25, 2021
Extremely biased account. The fact that Dai Morris's chain was found on the floor covered in blood in the bedroom where the biggest struggle took place i.e. Mandy fighting for her life, is completely glossed over! Dai Morris is so obviously guilty it's laughable. Unfortunately books like this feed off the gullibility of some of the public.
Profile Image for Jo Cleobury.
502 reviews7 followers
April 7, 2022
Wow! What a book and what a total miscarriage of justice!!! South Wales Police and both juries should be ashamed of themselves. It is absolutely disgusting that this man spent the rest of his life in jail for murders that he did not commit. If this is British justice then may God help us all ! That Alison ,her husband and his brother have a lot to answer for. RIP Dai .
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