Art. 129 Act on Administrative Procedure and Administrative Justice (Administrative Justice Act, VRG) (Verwaltungsrechtspflegegesetz, VRG)

1. Before the competent authority resorts to an enforcement measure, it must be threatened to the obligated party, allowing a reasonable period for compliance.

2. In the case of substitute performance or the use of police, the warning and setting of a deadline can be omitted if there is an imminent danger.