cap and bowler hat peak caps, bowler's hat and cap badge for officers and warrant officers rank cap embellishment (ambulance) cap embellishment (nursing) cap badge staff officer grades 4 to 6,warrant officers and corps presidents peak cap bowler's hat officer cap badge staff officer grades 3 to 1 and district presidents peak cap with a silver bar bowler's hat with silver lining officer cap badge commissionersand hq presidents peak cap with a silver bar and st john wort bowler's hat with silver lining senior officer cap badge (embroidered) collar badges rank adult memberswarrant officers, officers and senior officers collar badges gorget patches rankbrigade / senior / district presidents officers (grade 2 to grade 1)senior officers (super grade 1 to super grade 5) gorget patches rank structure as a uniformed organisation that has a military heritage that originated with the order of st. john, a rank structure used to distinguish members and appointment holders. in general, the rank one holds within the organisation corresponds with their appointment. ranks and insignia of st john ambulance (senior officers) rank sg1 sg2 sg3 sg4 sg5 insignia title chief commissioner deputy chief commissioner senior assistant chief commissioner assistant chief commissionerchief nursing officer commissionerdistrict commissioner ranks and insignia of st john ambulance (officers) rank so1 so2 so3 so4 so5 so6 insignia title staff officer grade 1hq staff officerdistrict commissioner staff officer grade 2hq staff officerdistrict superintendentdistrict surgeon*district nursing officer staff officer grade 3(hq / district) staff officercorps superintendentdistrict nursing officer staff officer grade 4(hq / district / corps) staff officercorps surgeon*(district / corps) nursing officer staff officer grade 5(hq / district / corps) staff officercorps nursing officerdistrict nursing officer* staff officer grade 6corps staff officer ranks and insignia of st john ambulance (warrant officers) rank wo(1) wo(2) wo(3) wo(4) insignia title warrant officer grade 1brigade sergeant majorhq warrant officer warrant officer grade 2(brigade / district) sergeant major(hq / district) warrant officer warrant officer grade 3district sergeant majordistrict warrant officer warrant officer grade 4district warrant officer ranks and insignia of st john ambulance (adult and cadet members) rank sss ssg sgt cpl lcp pte insignia title senior staff sergeant staff sergeant sergeant corporal lance corporal private presidents hq / district / corps president orders, decorations and medals officers and members are entitled to receive the following orders, decorations and medals: local awards the commendation medal of st john (cmsj) the priory medal the 5 years first aid efficiency medal the golden jubilee medal international awards (awarded by the order of st john) the bailiff / dame grand cross of the order of st john (gcstj) the knights / dame of justice of the order of st john (kstj / dstj) the knights / dame of grace of the order of st john (kstj / dstj) the commander of the order of st john (cstj) the officer of the order of st john (ostj) the member of the order of st john (mstj) the life-saving medal of the order of st john the service medal of the order of st john