Shades of Gray (The Hochenwalt Files Book 1) by Addie J. King

When idealistic rookie cop Samantha Hochenwalt is attacked and injured on duty, she has no idea that werewolves exist outside of Hollywood horror movies. As embarrassed as she is by excessive body hair growth, mood swings, and an extraordinary craving for meat, she finds that becoming a werewolf is just the beginningof her problems. Even as her partner and secret crush, Justin Noble, finally admits he cares for her, she suffers from post-traumatic stress disorder as a victim of a violent crime. Sam can't help but worry about her intermittent fur coat and its effects on her life, her career, and her new relationship.

Max Howard is the local werewolf pack leader. He's convinced the local pack that exposure is the worst thing that could happen to them, putting their jobs, families, and careers at risk of prejudice and discrimination. Sam's loved ones become targets as Sam is blackmailed to keep their secrets. Sam must balance her ingrained desire for justice against the safety of her friends and family, and decide how far she's willing to bend the law to keep her friends, her family, and Justin safe from Max's paranoid culture of fear.