Southern Vectis who, in 1987, investigated the company and found their behaviour to be anti-competitive. It was alleged that Southern Vectis was engaged in "duplication", running buses immediately ahead of competitors' where routes coincided, and having their drivers lie in wait for competitors' vehicles in order to beat them to waiting passengers. In 1991, duplication tactics were seen again when Southern Vectis shadowed an Isle of Wight County Council contracted bus run by Norman Baker Taxis. In 1986, Southern Vectis acquired Newport bus station as part of their privatisation and refused competitors access to it. The Office of Fair Trading report, published
Island Line, Isle of Wight of Ryde Tunnel is 10 inches too low for standard National Rail vehicle types to clear. Since the reopening of the line in 1967, former London Underground Tube stock has been used. The initial trains were formed of so-called Standard Stock, made up into four and three-coach sets (with one spare vehicle, normally kept at Ryde depot), designated "4-VEC" and "3-TIS" in the British Rail Southern Region electric multiple unit classification system. (The classification letters were a pun on the Roman name for the island, "Vectis", also reflected in the name of the island's nationalised bus company, Southern Vectis, which