Just trying to answer seriously and not assume too much the answer is a simple yes/no. There is no real barrier to filing a lawsuit. Fill out the paperwork and file it with the court. Boom, you’ve sued someone. The bigger question would be if they have qualified immunity (or whatever lawyer version is similar to that) or if it would actually go anywhere. You’d want to talk to a real lawyer (IANAL). That’s at the very least unethical, possibly criminal.