Within the framework of support during a customs inspection, it is important to consider that comprehensive work, including preparing and instructing the client's personnel on relationships with inspectors; preparing defensive arguments for documents/information provided to inspectors (collecting evidence base), can already at the stage of conducting the customs inspection remove a number of significant questions from inspectors on controversial issues of non-compliance or violations in performing customs operations and declaration. And also minimize risks related to compliance with EAEU and RK customs legislation, without waiting for the inclusion of these violations in preliminary or final acts of customs inspections.