WHY POLICE CAN'T CHASE MOPED THEIFS
When a Moped criminal takes off their helmet, the Met Police can no longer pursue a chase.
And criminals have been using this loophole in a bid to escape being caught.
Scotland Yard admitted officers 'rarely chase' helmetless riders because of the prospect they might die if they fall.
The strategy was developed following the death of moped rider Reece Leon Robinson-Webber, 15, from Streatham.
He was killed in West Norwood, Lambeth during a police chase in August 2008.
The Independent Police Complaints Commission then produced a report which said it had 'overall concerns about the standard of training made available to officers and staff in relation to motorcycle pursuits'.
Scotland Yard brought in a number of changes following IPCC recommendations.
Scotland Yard say it has a 'moral duty' to protect the lives of offenders, as well as those of the public.