article_snippet: ’ his son was stopped and questioned for up to nine hours by MI5 officers and detectives from Scotland Yard’s counter-terrorism command when his son returned home with Mustafa in December.
article_snippet: They released his son without his son being arrested or charged in the belief that his son would co-operate with They as They investigated his son movements and contacts in Syria.
article_snippet: Yesterday his son remained under arrest at a high-security central London police station after being flown back from Turkey to Luton airport on Thursday.
article_snippet: his son is being held on suspicion of preparing acts of terrorism, an offence which carries a maximum penalty of life imprisonment.