Transit has its own police force committed to the safety of its customers and drivers，serving seven counties and 85 cities in the region.There are 23 full-time officers，146 part-time of officers and five administrative(行政的) staff，devoted to one thing：public safety.
You’ve probably seen Transit Police officers patrolling(巡逻) bus routes in cars or on foot.During visits drivers.Transit police either ride along or they step on board to greet drivers and passengers. Sometimes officers patrol out of uniform--one could be on your next bus.The fare inspectors on HiaWatha light-rail trains are Transit Police officers.
Every new Public Transit bus has all on board security camera.Videotapes from these cameras help Transmit Police identify and charge criminals.
Downtown patrols built up in early 2002 have improved the quality of life for downtown residents and transit customers.Ten full-time police officers are assigned to the Minneapolis and St.Paul downtown areas，to ensure public security.
Downtown arrests have gone from 490 in April-September 2001 to 941 during the same period in 2002.
21.The responsibility of the police force of Public Transit is to _ _ _ _ .
A.enhance public security
B.build a free transit system
C.control the number of riders
D.ensure a convenient transit system
22.Sometimes patrolling officers on buses are unnoticed because _ _ _ _ .
A.they look like fare inspectors
B.they don’t wear uniform
C.they are polite to passengers
D.they often take a back seat
23.The purpose of installing a camera inside the new buses is to _ _ _ _ .
A.keep a close watch over the road ahead
B.take pictures of the passengers on road
C.increase the efficiency of the transit system
D.help the transit police detect criminals
24.Two figures are mentioned in the last paragraph to indicate _ _ _ _ .
A.the Public Transit system’s efficiency
B.the success of Transit Police program
C.the police’s emphasis on security of downtown areas
D.the worsening security condition of the area
25.The best tire for the passage might be _ _ _ _ .
A.Police and Security
B.New Security Measures
C.Transit Police Security Program
D.Crime-free Public Transit System