This report updates previous IRC studies surveying the public about the acceptability and perceived frequency of various types of insurance fraud, with special emphasis on auto insurance fraud. It also examines attitudes toward a variety of tools that insurers and law enforcement use to fight against insurance fraud, including claim handling techniques and consequences for fraudulent behavior, and the public’s willingness to perform fraud-fighting efforts. The study finds lower tolerance of fraud than in past studies and broad support for measures designed to reduce fraud.