Gary Hesterberg was enjoying a walk with his two small dogs at Golden Gate National Recreation Area (GGNRA) when he was confronted by a park ranger. She cited him for allowing his dogs to be off leash. Witnesses claim he put both dogs on leash and complied with her request for personal identification. Yet, the ranger tased Hesterberg in the back as he walked away.

GGNRA officials claim he gave false information and attempted to leave despite the ranger asking that he remain at the scene while she did a background check. Area dog lovers are outraged at the ranger's seemingly disproportionate actions. Congresswomen Jackie Speier, DogPAC of San Francisco, and other dog advocacy groups, are demanding an independent investigation.