The family of a Dublin man wrongly charged with the murder of two elderly psychiatric patients in 1997 has begun proceedings to have the internal Garda report on the matter made available to them.
Mr Dean Lyons, who was charged with the murders of Ms Sylvia Shields and Ms Mary Callinan at Grangegorman Hospital on March 6th, 1997, was subsequently freed after another man admitted the murders.
Last November, the Director of Public Prosecutions (DPP) decided not to charge the other man, Mark Nash.
Nash is serving life imprisonment for murdering a young married couple, Carl and Catherine Doyle, in Co Roscommon in August 1997. Nash, who comes from Leeds, has applied to serve his sentence in England. Mr Lyons, who was a heroin addict, was released from prison in March 1998 and died of an overdose in Manchester last September.
His brother, Mr John Lyons said yesterday his family believed there was a cover-up of the events which led to his brother's imprisonment.
The family had not received an explanation or apology. Mr John Lyons said the family was very angry about "the disgraceful way the families of the victims have been treated by the police and Ministers".
Mr Lyons said: "The man who has admitted to the Grangegorman murders with his solicitor present, is not to be charged and is expected to serve the remainder of another sentence in England.
"This man has committed crimes in Ireland against Irish citizens and therefore should serve his sentence in Ireland.
"When Dean was finally released from prison he was given no apology or explanation. In fact, it was the opposite. They harassed and abused him everywhere he went. This became unbearable for him so he moved to England.
"The fact is that people have been murdered and the police do not want to prosecute the murderer. This is not unusual in Ireland. If a scandal affects the church, the police or a politician it must be hushed up as quickly as possible.
"We will persist until we get the truth. After speaking with the Doyle family, it is now my full intention to expose this. If it is the wish of the police to make this case disappear, then it is mine to expose it.
"My brother Dean was a drug addict and an attention seeker. He was guilty of no crime except taking an illegal substance and he had nothing to do with any murders."