More than 100,000 people have called for a Royal Marine who killed an injured Taliban fighter in Afghanistan to be freed from prison.
Their support could mean the case of Sergeant Alexander Blackman from Taunton is debated in parliament.
Sgt Blackman faced a court martial after video footage of the incident was found on a laptop computer. He admitted shooting a Taliban fighter who had already been hit by a round from an Apache helicopter gunship. But the the court martial panel didn't accept his claim that the man was already dead when he shot him. He was sentenced to life imprisonment.
An epetition was started demanding his release. It gathered more than a 100,000 signatures, enough to trigger a parliamentary debate.
Parliament cannot intervene directly in a court decision, but former Royal Marine, former MP, and trained lawyer Lord Burnett says it should take action on the court martial system.
Lord Burnett has kept in touch with Sgt Blackman and his family.