Kristina Cummings, a Pest Exclusion Officer/K-9 Handler, watches as Bishop alerts her of a box containing a plant material during a training exercise at the San Bernardino County Agricultural Commissioner’s office on Tuesday, Feb. 10, 2015. Bishop is a service dog, but his job is different than most. He and his handler Kristina spend their days prowling the warehouses of shippers UPS, FedEx and the USPS, searching parcels for the ones that contain illegally shipped plant materials, and more importantly, some hitchhiking agricultural pests.