Medicine, Power, and the Law demonstrates that criminal and civil justice interact with medicine and public health more than is presently understood. The book focuses on the role of healthcare practitioners and an array of other professionals across industries in identifying wrongdoers, reporting behavior, and testifying on behalf of the state or government agencies. It also covers circumstances in which law enforcement relies on medicine for evidence or support in ways that compromise medical ethics. By reporting or testifying as experts, a range of people, from specialist pediatricians to flight attendants, can have a life-changing impact on individuals in the name of public health or medicine. People who work in hospitals, social work settings, and even airlines, often contribute to wrongful and aggressive criminal and civil actions against society’s most vulnerable people, including parents, older adults, and people living with poverty. The book explores a number of examples, including police use of medicine as a restraint or the collection of blood as evidence and the risks of opting out of certain scientific discoveries, such as pharmaceuticals. It describes the harms that may come to those who engage in suboptimal but generally heretofore legal child-raising behaviors, and people opting to live independently as older adults. These can lead to civil and criminal charges when noticed by those in a position of power. Medicine, Power, and the Law is an important contribution for researchers and practitioners in medicine, the law, and the expanding field of bioethics.