War crimes suspects from Rwanda and the Balkans living in Britain could be tried in the UK, under plans outlined by Justice Secretary Jack Straw.
Under the proposals, anyone suspected of war crimes since 1991 - 10 years earlier than the current law allows - could be prosecuted in a UK court.
Mr Straw said it would close a legal loophole and could bring forward several prosecutions.
Campaigners had warned the UK could be a "safe haven" for war criminals.
"I have received a lot of representations… that we ought to extend and make retrospective these provisions back at least another decade, for example to capture those involved in the Balkans atrocities or in the Rwanda atrocities," Mr Straw told the BBC.