Next step, setting up a camera sensor on a tree and wait for nightfall.
Jinrong mostly works at night, when there's a higher chance of a lost animal emerging from hiding. And it was during the night, as Jinrong watches from within a tent. that him and his team spot a cat in the bushes.
It was DuoDuo! Owner Li Hongtao could barely contain his excitement when he arrived on scene and saw DuoDuo.
"When our case is solved, it's basically a reunion," says Jinrong, adding: "It's a happy moment."
Thank you, Sun Jinrong! A real life animal hero!