Northern Ireland should be wary of investigating historic cases of murder which took place during The Troubles as "they are in the past" and the public does not want "to go back to that".
Labour's Peter Hain told Good Morning Britain he did not think digging up the past would bring justice or closure to the victim's families.
"I do not think that going back 40 and more years in this fashion is actually going to take Northern Ireland forward, nor do I think, in the vast majority of unsolved cases, it will bring any sense of justice to victims."
Former Labour cabinet minister Peter Hain told the Guardian he felt intervening in Syria would be "very dangerous".
Mr Hain, who is poised to vote against the motion when Parliament meets tomorrow if he returns from a foreign trip in time, said: "The Prime Minister is asking the nation to back him on a dangerous strike when nobody knows what the consequences will be. I think that's very, very dangerous politics."