Division 5.2

By way of derogation from Article 8, cross-border workers who are well known to the border guards owing to their frequent crossing of the border at the same border crossing point and who have not been revealed by an initial check to be the subject of an alert in the SIS or in a national data file shall be subject only to random checks to ensure that they hold a valid document authorising them to cross the border and fulfil the necessary entry conditions. Thorough checks shall be carried out on those persons from time to time, without warning and at irregular intervals.