Met police officers told they must justify pre-arrest use of handcuffs

Scotland Yard review launched following stop and search of Olympic athlete Bianca Williams

Britain's largest police force will have to justify its use of handcuffs following a review that was triggered after the stop and search of Olympic athlete Bianca Williams.

Williams, 27, accused the Metropolitan police of racially profiling her and her partner, Ricardo dos Santos, a Portuguese sprinter, when they were handcuffed and separated from their three-month-old son last July after their car was stopped by officers.