Evidently deciding he'd been "missing" long enough, the dog headed back to his family, all on his own.
"He ran out just as quick as he came in," Martin said, having posted about the incident on Facebook. "The owner responded the next day [to say that] it was his dog and he had returned home. He lives about a mile from the station."
The dog, who's named Chico, had cracked his first case — albeit one of his own design.
"I was impressed," Martin said. "He may just be cut out for this work."