In Texas, fraud can lead to both civil and criminal charges, depending on the nature and severity of the deceit. Police in Texas use deception when interrogating suspects, but within limits.They cannot cross ethical or legal lines. In keeping with this mission, the Board is concerned about the deceptive or dishonest conduct of an individual as it relates to the provision of health care. Misleading the police is not only morally questionable but is, in fact, a crime in Texas, as in many other jurisdictions. Committing perjury is a violation of Texas state law. According to the law, an act of fraud is a deliberate attempt to deceive another person, usually for personal or financial gain. Lying is not a single phenomenon. There is nothing in the real world quite like Pinocchio's nose. 1. It is almost always legal for police to lie during interrogations.