"A local authority may procure officers appointed by them for securing the observance of the provisions of all enactments relating to open spaces under their control of management and of the byelaws and regulations made thereunder to be sworn in as constables for that purpose but any such officer shall not act as a constable unless in uniform or provided with a warrant."
"I …. do solemnly and sincerely declare that: I will well and truly serve the Queen in the office of Constable in the said London Borough [Redbridge] in pursuance of… Article 18 of the [1967 Order] … with fairness ….; and that I will to the best of my power secure the observance of the provisions of all enactments relating to parks and open spaces under the control or management of [Redbridge]… and of the byelaws and regulations made thereunder; and that while I continue to hold the said office of Constable I will … discharge all the duties thereof faithfully according to law."
"Service as a member of a constabulary maintained by virtue of an enactment."
"The position in law is that service as a member of a constabulary maintained by virtue of an enactment is apt to include service in one of the four statutory police forces not maintained by Home Office grant, namely BTP, MOD Police, Royal Parks Constabulary and UKEA Police."
"Every park constable shall on appointment be attested as a constable by making a declaration before a Justice of the Peace that he will duly execute the office of a constable."