Military action may be off the agenda for the UK after Thursday night's Commons vote, but Britain could be central in bringing perpetrators of war crimes or crimes against humanity to justice, said Michael Caplan QC.
Mr Caplan, a partner specialising in international criminal law at Kingsley Napley, said: "Britain may well have a significant role to play in the future arising out of these alleged atrocities.
"This country could be central to bring to account the perpetrators of war crimes or crimes against humanity.
"Controversial military action by the UK may now be off the agenda, but we may in time play a central role in bringing those responsible to account."
Mr Caplan added the Obama administration must still look at the legality of military action.