The foreign secretary William Hague has insisted that justice will be done for the family of Royal National Orthopaedic Hospital surgeon Dr Abbas Khan.
Mr William Hague was speaking after visiting Whitmore High School, in Porlock Avenue, Harrow, where children quizzed him on the alleged atrocities that have unfolded during the civil war.
Days before being arranged to be released in December, Mr Khan, who spent a year doing charity work in the war-torn country before being detained without charge, the Syrian regime announced that he had committed suicide, which was refuted by the British government and the Stanmore doctor's family.
"I spoke with his brother on the day we found out he had died," Mr Hague said.
"It was a tragedy. We must expect justice to be done for the many crimes that have been carried out, including the case of Abbas Khan."
The Conservative cabinet member was also encouraged by inquisitive students who asked him what the UK can do to tackle the Syria issue.
"This is a great school," he said. "Wherever you go, it's always young people asking the best questions. It's very encouraging."