2   Parties shall take the necessary legislative or other measures, in accordance with internal law, to ensure that there are appropriate mechanisms to provide for effective co‐operation between all relevant state agencies, including the judiciary, public prosecutors, law enforcement agencies, local and regional authorities as well as non‐governmental organisations and other relevant organisations and entities, in protecting and supporting victims and witnesses of all forms of violence covered by the scope of this Convention, including by referring to general and specialist support services as detailed in Articles 20 and 22 of this Convention.