evidence: State papers: Searches in disputed lough raised by Dublin - Published The Irish government complained to British ministers about the alleged harassment of vessels in Carlingford Lough by a patrol boat manned by Royal Marine Commandos, in 1991. [...] The memo noted that on 21 October 1991, the crew of one yacht, Gurlough, complained to the Irish government and made a number of allegations a boarding party of Royal Marines had searched it in Carlingford Lough.