Deadly Gamble by Linda Lael Miller

A New York Times bestselling author's novel about a woman who needs to solve a mystery. She's got an uncanny knack for winning at slots but her home-sweet-home is Bad-Ass Bert's Biker Saloon. She'd love to go deep undercover with an irresistibly hot cop, but he's got baggage as big as his biceps. This is a romance novel. It was published by HQN.