Wis. Stat. § 173.15: Provision of care, treatment or disposal services.

(1) Providing services. A political subdivision may provide for the care, treatment or disposal of animals taken into custody by a humane officer or law enforcement officer. A political subdivision may provide these services directly or by contracting with any other person. A political subdivision may establish standard fees for the care, custody and treatment of animals in its custody. The political subdivision may establish different fees for animals released to their owners and animals released to persons other than their owners. If the political subdivision does not establish standard fees, it may charge no more than the actual costs of care, custody or treatment to any person required to pay for the care, custody or treatment of an animal.

(2) Contract for services. Every person entering into a contract with a political subdivision under sub. (1) shall agree to do all of the following:

(a) Provide adequate care and treatment of all animals delivered under the contract.

(b) Maintain adequate records consistent with s. 173.17.

(c) Release or dispose of animals under s. 173.23 or as provided in a court order.