What type of lawyers sue the police for a living?

I know lawyers specialize in many fields such as..
Prosecutors
Public Defenders
Criminal
Civil
Divorce
Class-action lawyers
Real Estate
Bankruptcy
Insurance
Commercial
Corporate
Property
Appeals
Cyber attorneys

but which one actually specialize in sueing the police force? The reason I'm asking is because there are always police brutality and harassment but however they get away with their crimes because they're legal criminals. So what kind of lawyers specialize in these kind of court cases?
What type of lawyers deal with police harassment and brutality?

It would be civil rights specialist. When the police violate a person's civil rights they are allowed to walk and sue. Generally there is not trial or anything and it is settled beforehand to avoid bad publicity for the police force.