Ask a lawyer friend to answer, what do the investigators recruited by the law firm do?

Generally speaking, investigators are recruited by large companies.

Work is generally to do follow-up surveys and use certain social relations to obtain information.

For example: follow-up shooting, accident scene, talking with the client when the lawyer is inconvenient, etc.

The job has no prospects, the salary is average, but it is very hard.

The most important thing is to learn to protect yourself. Many times, what you have to do is on the verge of breaking the law, such as talking to the victim and understanding the situation. And you are likely to be charged with a crime.