I think this may have been on the Ologies podcast recently, the dog was too excited and playful for a police dog, but that was perfect for poop sniffing.

Ologies with Alie Ward: Eco-Odorology (SCIENCE-SNIFFING DOGS) with Kayla Fratt

Episode webpage: https://www.alieward.com/ologies/ecoodorology

Media file: https://pdst.fm/e/dts.podtrac.com/redirect.mp3/stitcher.simplecastaudio.com/89060b63-e603-4297-b6e8-5a654e50244e/episodes/e1f9b2f2-dba5-46e6-829d-69d425f36304/audio/128/default.mp3