Approaches to emergency interventions for psychiatric problems are notably different from those for medical problems. Responses to medical emergencies are usually handled by trained medical personnel. Responses to psychiatric emergencies are usually handled by police officers. Emergency medical clinicians assess for acute medical conditions, seek a medical history, and consult emergency medicine physicians about on-the-spot clinical interventions. Police officers usually assess for acute dangerousness, seek a legal history, and decide whether the individual's behavior warrants involvement in the criminal justice system or the mental health system or both.