Expert Witness

Zach Pfannenstiel

With a distinguished background in canine apprehension and over 17 years in law enforcement, Zach Pfannenstiel is a recognized expert witness in police K9 operations, use of force, and animal behavior. He has delivered expert testimony in federal, state, and civil courtrooms, bringing unparalleled insight into police canine deployment and less-lethal tactics.

Zach has been called upon as a court recognized expert in:

- Police dog handling and K9 apprehension tactics

- Use of force and less-lethal munitions

- Canine behavior in law enforcement settings

- Law enforcement response analysis and internal investigations

Zach has provided expert consultation to California legislators, including formal testimony on Assembly Bill 3241 and Assembly Bill 400 at Capitol Hill in Sacramento. His input has helped to clarify the real-world consequences these bills could have on law enforcement procedures and K9 deployments.

Zach works closely with agencies to provide:

- Use of force dissertations

- Expert reports for internal or external investigations

- Compliance consulting for consent decrees and reform oversight

- Policy review and K9 unit audits

Whether you’re a department seeking expert analysis or an attorney needing courtroom credibility, Zach offers professional insight grounded in frontline experience, with over a decade in K9 leadership roles and recognized subject matter expertise. For his comprehensive resume and additional information, please do not hesitate to reach out.