On 08/04/2018 13:00, Bod wrote:
Thousands of young people cycled alongside police officers to protest
against London’s knife violence. As many as 4,000 youngsters rode on
BMXs from London Bridge to Oxford Street on Saturday as part of the
#BikesUpKnivesDown campaign.
http://metro.co.uk/2018/04/08/thousa...8/?ito=cbshare
Whom were they trying to convince and of what were they trying to
convince them?