Byline: By RUSSELL FINDLAY
A SENIOR police officer has claimed detectives faked diaries and planted evidence in a bid to frame a 12-year-old for the murder of his older brother.
A secret police report released last week brands the murder squad who investigated the death of 14-year-old Lawrence Haggart criminal and incompetent.
The report by James Mackay, the then assistant chief constable of Tayside Police, shows officers became so obsessed with nailing Lawrence's young brother Dennis for the crime that they ignored the true killer - serial paedophile Brian Beattie.
Lawrence was battered in his own home as he lay sleeping on the sofa and then set on fire by Beattie.
The report says detectives found a hammer and petrol in Beattie's van - but accepted his alibi that he had been out cruising for gay sex in Edinburgh.
The Mackay report reveals how police# Faked entries in an official diary of the murder inquiry at a later date.
# Failed to carry out basic searches of paedophile killer Brian Beattie's criminal record.
# Contaminated the crime scene and destroyed evidence.
# 'Discovered' a hammer sitting in the Haggart family's kitchen - after their home had already been searched NINE times.
# Did not even consider a sexual motive for the murder.
# Lost a possible murder weapon and ignored another in the killer's car.
The shocking report was ordered after claims police attempted to frame Lawrence's brother Dennis for the killing It has remained secret for seven years but was released last week to Lawrence's dad Larry under new Freedom of Information rules.
Lawrence was battered by killer Brian Beattie who had simply walked in to the family home in Larbert, Stirlingshire.
But police wrongly suspected Lawrence's brother Dennis.
In his report Mackay includes the damning statement: 'Clearly there were matters of a disciplinary nature and also aspects of the murder investigation which may have been considered criminal.'
The Mackay report reveals a catalogue of astonishing incompetence by the murder team led by Detective Superintendent Jim Winning and Inspector John Bunyan.
They spent almost 18 months trying to pin the murder on Dennis and his older brother John, then 16. They did question Beattie - but ignored his track record for attacking boys in their homes.
A new team, led by Superintendent Joe Holden, was appointed and they nailed Beattie who is now serving a minimum of 15 years. Winning retired through ill-health while Bunyan had his knuckles rapped.
The report suggests police planted a potential murder weapon - a hammer - in the Haggart house to fit in with their theory that the killer was his brother.
The report says: 'On 22 March 1996, two officers recover a hammer. This apparently significant find came after the house had already been searched nine times. They found a hammer with a head hair adhering to it. At the time this was a potential murder weapon and a significant find.
'The officers who searched the kitchen on 18 March were confident the hammer was not there during their search.'
One detective sergeant who made the bizarre 'find', Bob Beveridge, was disciplined with colleague Alan Stewart and later booted out of CID.
Mackay also reveals how detectives faked entries in their own diary of the murder inquiry. They blundered by referring to Lawrence as 'the deceased' before his death.
Mackay states: 'There are four references to the 'deceased' Lawrence Haggart purporting to be made on 16 March 1996 but he did not die until the following day. …