Cruiser is a trained sniffer.

Cruiser had been invited because the mother had found a dead bedbug floating in the bath of one child the night before, and she wanted to make sure, if there was an infestation, that it didn't travel to their new home. The house next door had had a problem, she said, and she knew bedbugs travel easily through walls. All this was related to Mr. Ecker, while Oscar Rincon, his colleague, waited outside with Cruiser.

"I don't want to know the details," Mr. Rincon said later, lest the knowledge affect his body language and interfere with the dog's inspection.