The department of police, if established in accordance with Chapter 17 (§ 15.2-1700 et seq.), may include an animal protection police officer who shall have all of the powers of an animal control officer, as defined in § 3.2-6500, conferred by general law and one or more deputy animal protection police officers to assist the animal protection police officer in the performance of his duties. An animal protection officer and his deputies also shall have all of the powers vested in law-enforcement officers, as defined in § 9.1-101, if they meet the minimum qualifications and have been certified under §§ 15.2-1705 and 15.2-1706.