Manchester Evening News.He claimed to have seen a police officer knee Mr Moura in the head 'several times' as he was being restrained.GMP made a mandatory referral to the Independent Office for Police Conduct (IOPC) following the incident and all ten officers who attended were placed on restricted duties.Mr Martin's video was seized as part of the probe and IOPC investigators also looked into his allegation that police waited ‘around 15 or 20 minutes’ after Mr Moura was put into the van before