An inquiry into the death of teenager Brian Rossiter has found no evidence of him being assaulted at Clonmel Garda station.
The 14-year-old was found unconscious in a cell following his arrest in Clonmel town on 10 September 2002.
He died a few days later and the Rossiter family has always questioned the cause of the teenager's death.
The investigation has found there was a failure on the part of gardaí to investigate all the circumstances surrounding Brian Rossiter's death.
It found the teenager's arrest was lawful, however his detention was unlawful, even though his father consented to it.
It also determined there was no evidence to suggest there was an attempt by gardaí to mislead medical personnel attending to Brian Rossiter with incorrect information.
The inquiry, conducted by Hugh Hartnett SC, was set up in September 2005 to look into a number of issues arising from the arrest of Brian Rossiter.
Minister for Justice Brian Lenihan welcomed the report and siad he accepted all its findings.
The full report has not been published for legal reasons.
The Garda Representative Association has welcomed the publication of the report.