Picketing is attendance by strikers or supporters at the entrance to an enterprise in order to persuade employees who wish to work not to enter the enterprise but to join in the strike.
It is a manifestation of freedom of opinion. It can be prohibited by the burgomaster, who is responsible for public order and safety.
Picketing must be confined to peaceful persuasion. Action going beyond this, such as physically preventing entry, occurs frequently but is in principle contrary to the freedom of labour.
Please note: the European industrial relations glossaries were compiled between 1991 and 2003 and are not updated. For current material see the European industrial relations dictionary.