(36)The multi-annual national control plans should establish a solid basis for the Commission inspection services to carry out controls in the Member States. The control plans should enable the Commission inspection services to verify whether the official controls in the Member States are organised in accordance with the criteria laid down in this Regulation. Where appropriate and, in particular, where the audit of the Member States against the multi-annual national control plans shows weaknesses or failures, detailed inspections and audits should be carried out.