Context: Motorcycles are also commonly used, particularly in locations that a car may not be able to reach, to control potential public order situations involving meetings of motorcyclists and often in escort duties where motorcycle police officers can quickly clear a path for escorted vehicles. Bicycle patrols are used in some areas because they allow for more open interaction with the public. In addition, their quieter operation can facilitate approaching suspects unawares and can help in pursuing them attempting to escape on foot.

Question: Why do some cops use bicycles to patrol?
Answer: they allow for more open interaction with the public

Question: How do bicycles help catch some suspects?
Answer: their quieter operation can facilitate approaching suspects unawares and can help in pursuing them attempting to escape on foot

Question: What do police use to control motorcyclist events?
Answer: Motorcycles

Question: Why do all cops use bicycles to patrol?
Answer: Unanswerable

Question: Why do some cops use motorcycles to patrol?
Answer: Unanswerable

Question: How do bicycles help catch some police officers?
Answer: Unanswerable

Question: How don't bicycles help catch some suspects?
Answer: Unanswerable

Question: What don't police use to control motorcyclist events?
Answer: Unanswerable