Uk Continental Shelf: Safety Zone Infringements Lord Kennet asked Her Majesty's Government:How many reports they have received (a) overall and (b) by year, of intrusions by extraneous vessels, other than fishing vessles, into the safety zones of oil or gas installations on the British Continental Shelf? Viscount Davidson In the period from 1980 to the end of November 1987, the Department of Energy received reports of 45 infringements of safety zones around installations on the UK Continental Shelf by vessels other than fishing vessels. An annual breakdown of this figure is given below: ------------------------------------------------ |1980|1981|1982|1983|1984|1985|1986|1987*|Total| ------------------------------------------------