Humane Society Officer
The basic idea is sound, but doing it on the county level is dubious. Read the California Corporations Code sections 14500-14503.
http://caselaw.lp.findlaw.com/cacodes/corp/14500-14503.html
Humane society officers exercise police powers under the California Food & Agriculture, Penal, and Health & Safety Codes. Here is a partial list of the powers and code sections:
* May initiate proceedings to collect civil penalties relating to spaying or neutering, pursuant to section 31763 of the Food & Agriculture Code.
* May seize, care for and euthanize animals that are without proper care, pursuant to Penal Code section 597.1 and 597f(b).
* Is required to locate owners of certain animals for the purpose of returning lost animals to the owners, pursuant to Penal Code section 597.1(l).
* Is required to assist horse owners who need to abandon or give up ownership of their horses, pursuant to Penal Code section 597.2.
* Must inspect vehicles that transport horses to slaughter, per Penal Code section 597o(a)(12).
* May cite horse owners and keepers who fail to meet certain standards for humane treatment of horses, pursuant to Health Safety Code section 25988.
* May inspect the records of pet dealers pertaining to the health, status, and disposition of dogs and cats pursuant to Health & Safety Code section 122145.
Humane officers also are grouped with officers "of a district, county, or city" with respect to Government Code provisions relating to misconduct in office and removal from office. (See Government Code section 3060-3075.)
Licensing dogs and performing other governmental functions for a city is further evidence that the humane society is a public authority. The ability to issue dog licenses is a governmental function, not a private one. (See California Government Code section 38792(a), "The legislative body of a city may impose and collect a license fee for a period not to exceed two years and not exceeding the cost of services relating to dogs...")
Functioning under contract as an animal control agency is also a factor that may make a humane society the equivalent of a governmental entity. An animal control agency is specifically referred to as a "local public agency" in places throughout the California codes (see, i.e., the reference in Government Code section 53126.5 to "a local public agency such as street maintenance and animal control.") Similarly, animal control services are included in the list of governmental services in the "County Service Area Law." (See Government Code sections 25210.1-25210.9c, especially 25210.4a which refers to "animal control" as one of the "miscellaneous extended services" covered by the County Service Area Law.)
It is indispensable to consult the printed version of the California Code for history and case law before proceeding any further.