Yes. ISPs have previously helped in copyright violation cases. This kind of assistance from Internet Service Providers can help attorneys to build a case against suspected pirates to seek injunctions against them that lead to fines and potentially even criminal court proceedings.
Various ISPs around the world have also complied with data requests from government authorities to assist in the arrest of criminals accused of more serious crimes, such as online harassment, stalking, fraud, scams, and other more serious crimes such as child abuse and human trafficking.