If an 0IM has reasonable cause to believe that it is necessary or expedient to do so MAR R 7 for the purpose of securing the safety of the offshore installation or the safety or health of persons on or near it, he may take such measures against a person on the installation, including: These powers should only be used in exceptional circumstances. If the period of restraint seems likely to exceed 24 hours the 0IM must notify the duty holder who can then take appropriate action e.g. informing police or health authorities.Relevant Statutes: