The difference between lawyers and detectives

First from the nature of the work to distinguish words, lawyers have a license to practice, is recognized by the state, but the detective does not have, at present the state recognizes a professional debt collector. Lawyers can do some litigation, investigation and evidence collection work, detectives can not do litigation. But can do investigation and evidence collection. Of course it is gray. In terms of legal mastery or lawyer is more comprehensive la, on the investigation and evidence collection of some of the techniques, skills to speak. Lawyers or not, of course, do not exclude individual lawyers. Generally some of the single detectives are lawyers to give.