Iatrogenic crimes are committed in the sphere of state-regulated doctor-patient relations. The reason is the violation by doctors of the rules for the provision of medical care. Medical standards provide a list of necessary measures for the diagnosis and treatment of specific nosological forms, including, taking into account the criteria relating patients to the risk group. Signs of the objective side of the crime first of all become available for study by law enforcement officers, since they characterize the external manifestations of the crime. They also determine the qualification of the crime and are considered as signs that differentiate criminal liability (determine the type and amount of punishment).