驾驶员被滞留的证件被民警丢失，民警的丢失行为能引起哪些法律后果？据笔者调查，民警对这类问题的处理大致有三种办法：有的给当事人出具证明去车辆管理部门补证，补证费由丢失人负责；有的由于种种原因不出具任何证明，只是采取好话多说和延长证件滞留的时间，让当事人按补? The driver was detained documents were lost by the police, police lost what legal consequences can be caused? According to the author’s investigation, there are basically three ways for the police to deal with this kind of problems: some give testimonials to the parties to go to the vehicle management department to fill in the certificates and make up for the ones who are responsible for losing the certificates; and for some reasons, do not produce any proofs, just take good words More to say and to extend the retention time documents so that the parties press make up?