Protective custody is a type of imprisonment (or care) to protect a person from harm, either from outside sources or other prisoners. Many administrators believe the level of violence, or the underlying threat of violence within prisons, is a chief factor causing the need for PC units. This factor was cited by Anderson () and Vantour (), with . Adult Protective Services (APS), is responsible for providing or arranging for services to protect incapacitated and/or dependent adults in danger. APS staff also petition for Public Guardianship and/or Conservatorship of incapacitated adults when all less restrictive alternatives have failed. Order Of Protective Custody Pursuant to LA R.S. , the office may issue an Order for Protective Custody (OPC) upon the request of a credible person who reasonably asserts that a person is a danger to themselves or others or gravely disabled. This impairment must be a result of mental illness or substance abuse, and the person is .