Traffic police officers at a ceremony marking the launch of an additional 300 traffic police patrolling on motorcycles in Shenzhen yesterday. Local traffic police started to use motorcycles to patrol trunk roads and expressways starting March 1 last year. By July last year, there were 300 traffic police patrolling on motorcycles, effectively increasing the fast-response capacity of the traffic police. The number of traffic police patrolling on motorcycles is expected to reach 1,000 by July 1, covering more areas in the city, authorities said.Sun Yuchen