Switzerland. Canton Ticino. Lugano. Railway station. Two police officers from TPO (Transport Police). Both policemen wear the special riot police black uniforms and helmets. One officer holds in his hand a grenade launcher (40 mm BT08).TPO (Transport Police) is the Swiss Federal Railways Police. Swiss Federal Railways (German: Schweizerische Bundesbahnen (SBB), French: Chemins de fer fédéraux suisses (CFF), Italian: Ferrovie federali svizzere (FFS)) is the national railway company of Switzerland. It is usually referred to by the initials of its German, French and Italian names, as SBB CFF FFS. 2.06.2017 © 2017 Didier Ruef