Survivors of the La Mon hotel bombing in Belfast more than 30 years ago have criticised an independent investigation into the attack, which they say lacks integrity.
Twelve people were killed and many more were injured when the IRA targeted the hotel on 17 February 1978.
The attack took place as 400 people were attending a dinner dance.
Three married couples were among those who died.
Families of the victims say the Historical Enquiries Team did not explain why important police documents in the case had disappeared.
They also said there has been no attempt to show why original material, recorded by up to 100 investigating detectives following the atrocity, is missing.
This material includes details of interviews with IRA men.
One of the survivors, Billy McDowell, said he believes if there were to be any more public inquiries into the Troubles then the La Mon atrocity was deserving of consideration as a suitable case.
