Ms Adrienne McGlinchey, one of the witnesses in the Frank Shortt miscarriage of justice case, has alleged that the internal Carty inquiry into Garda corruption in Donegal was seriously flawed and has called for the terms of reference of the Morris tribunal to be expanded to investigate the conduct of this inquiry.
Ms McGlinchey issued her statement in the wake of the decision by the Court of Criminal Appeal that Mr Shortt was the victim of a miscarriage of justice.
The judgment issued by the court in the Shortt case, she claims, indicates that the Carty inquiry was "seriously, if not fundamentally, flawed".
Ms McGlinchey refers to a number of statements made in the judgment that relate to the manner in which her testimony was treated by the Carty inquiry.
She claims that these statements indicate that vital evidence given by her during the Carty investigation was not followed up fully by the investigators.
"I am very anxious that the conduct of the Carty investigation, and of the internal Garda disciplinary procedures, be fully investigated in the public interest," Ms McGlinchey said.
"I am not convinced that the terms of reference of the Morris tribunal will enable that tribunal to consider these matters adequately or, perhaps, at all."
Mr Shortt's case was not included in the Morris tribunal's terms of reference.