accessory for the counterculture due to their use by John Lennon of the Beatles. A black leather version, sometimes embellished with chains or metal studs, was worn by bikers, greasers imitating Marlon Brando in The Wild One, and members of the 1970s Black Power movement. Peaked caps are also commonly worn around the world by some railway, or airport staff (baggage porters, but often wearing kepi type cap), bus drivers and security guards. A peaked cap is a part of the Salvation Army uniform in most of the territories it operates in. Student caps in Northern and Central European countries are frequently peaked caps. The student caps in Nordic countries are traditionally white (summer uniform) or black (winter uniform) but the colors of the bands, lining, tassels and cockades differ, depending on the school or the faculty. In German-speaking countries and in Poland, Estonia and Latvia, student caps come in a variety of colors, depending on the colors of the student organization or the school, and can be decorated with its zirkel (a monogram). Canada The Canadian Coast Guard shares a similar cap and colours with the Royal Canadian Navy. Police forces across Canada also wear a peaked cap. The cap is basic black with colour cap band of either of red (municipal forces), blue (Ontario Provincial Police, OPP) or yellow (Royal Canadian Mounted Police, RCMP). The peaked cap of the is green with a green band and yellow piping. Until recently the OPP's front line officers wore a black campaign hat, but has since reverted to the peaked cap. The RCMP only use the campaign hat for formal dress uniform or by members of the Musical Ride. Use of service cap by female officers are all but gone and replaced by peaked cap as unisex headwear. The only other headwear available is the turban for male Sikh police officers. Hong Kong and Macau The peaked cap and peaked hat are worn as formal dress by members of the Hong Kong Disciplined Services (police, fire, customs/excise, immigration, etc.) with influence from the British colonial services. All caps use black as base colour. The crown is flat and round in shape. Female police officers' caps have a coloured band, no crown top and front of the brim is flat with sides/back folded upwards. Only members of the Hong Kong Police's Tactical units, Emergency unit, and motorcycle officers do not wear the