Can you sue a lawyer for making a false police call?

I am involved in a lawsuit with this company. One of the defendants has been harring my family in regards to certain evidence that was put into the record against him. He confronted one of my family members about the evidence, and he also confronted anonther witness in regards to the statement he put into the record. I personally have been receiving threats. I then called the law firm and told them what has been going on, and what there client has been doing, and that I was considering going to the gun shop to get some protection for myself and my children. The lawyers defendants then called the police. The police report stated that they were investigating a phone call in regards to a possible threat. The police officer ruled it as a c-9 meaning that the call was baseless. Can I sue the lawyer and the firm for slander, and defamation of charcter. The police didn't come out, but I spoke with him on the telephone, and told him what has been going on.