Minor offences were sometimes used as a pretext for an arrest.犯轻罪有时被用作逮捕人的借口。The police are waiting for more evidence before making an arrest.警方要等到有更多的证据时才逮捕人。The police do not use force when arresting people unless it's absolutely necessary.除非迫不得已，否则警方不会使用武力逮捕人。