No, you are not obliged to have your statements inspected by a BMWT inspector. Not everyone can carry out an inspection. Article 7.4a, paragraph 5 of the Working Conditions Act states that an expert natural person, legal person, or institution carries out inspections. Several inspection classes have been laid down in the Memorandum 'Approval' of the Ministry of Social Affairs and Employment. The judge must be in possession of a certificate.