A RESTRAINT used by an ex-Brook House staff member against a detainee was unjustified, disproportionate and potentially dangerous, an inquiry has heard. 

Yan Paschali, who previously worked at the detention centre near Gatwick, was filmed by a BBC undercover reporter appearing to strangle a suicidal detainee. 

Jonathan Collier, a safe use of force expert who reviewed the incident, said that the technique used by Mr Paschali formed no part of the restraint syllabus.