Federal legislation governing employees seconded to Switzerland of 8.10.1999 (SR 823.20; SR 823.201)
Federal legislation on measures to combat undeclared work of 17.6.2005 (SR 822.41; SR 822.411)
Federal legislation on foreign citizens of 16.12.2005 (SR 142.20; SR 142.201; SR 142.203)
Employment market legislation of the Canton of Bern dated 23.6.2003 (BSG 836.11; BSG 836.111)