The Commissioner of Emergency Services and Public Protection may appoint, at the request of the Connecticut Humane Society, accredited agents of that society as special police officers to serve for two years from the date of their respective appointments, subject to removal by said commissioner. Such officers shall serve without pay, except their regular compensation as agents of said society. They shall receive no fees for service or return of any criminal process and shall have, throughout the state, the powers of constables and police officers to arrest and detain any person violating any provision of the statutes concerning cruelty to animals.