Mauro Demetrio told the jury he was arrested after an officer told him he could smell cannabis and that he was driving in a suspicious manner. He alleges that once in the van a fat officer sat on him and that an attempt was made to strangle him.
The court heard a doctor found bruise marks around his neck when he examined Mr Demetrio at the police station.
More top news
Detectives appealing for witnesses to a fatal accident have a released a picture of the 29-year-old victim.
Australian paramedics are being recruited to fill vacancies at the London Ambulance Service.
Brent Council is offering to cut business rates for firms that pay the London Living Wage.