Boating Western Australia (Inc.)
Marine Safety focusing on “Safety lanyards”.
A safety lanyard, also known as a kill switch, has a quick-release fitting at one end attached to the vessel motor or console and at the other end is a clip attached to the skipper. The coiled design allows the driver the natural movement required when driving a boat. Sudden movement away from the driving position means the lanyard will detach and the engine will stop.
When attaching the clip to the skipper special care needs to be taken to ensure it stays attached. Marine Safety recommends you loop the lanyard around your wrist, leg or ankle and attach the clip to secure it. If the clip is attached to clothing it could fall off.
More Information : https://www.transport.wa.gov.au/imarine/44123.asp