The UN High Commissioner for human rights, Navi Pillay, said that amnesty could not be granted for "serious crimes" in Syria.
Rejecting the possibility of President Assad being granted amnesty in a safe haven, in exchange for relinquishing power, Pillay said that whilst international leaders may be drawn into "politically expedient solutions which may involve amnesty or undertakings not to prosecute," it would be wrong under international law.
In an interview with The Associated Press, Pillay said,
"You cannot have amnesty for very serious crimes."
"So my message is very clear -- there has to be accountability."
See here for full AP report.