Code of Good Practice: Picketing
5. Pickets on the employer's premises

1. A picket may take place on the employer's premises with the permission of the employer. The permission may not be unreasonably withheld. In order to determine whether the decision of the employer to withhold the permission is reasonable, the factors that should be taken into account include--

1. the nature of the workplace, e.g. a shop, a factory, a mine, etc.;

2. the particular situation of the workplace, e.g. distance from place to which public has access, living accommodation situated on employer's premises, etc.;

3. the number of employees taking part in the picket inside the employer's premises;

4. the areas designated for the picket;

5. time and duration of the picket;

6. the proposed movement of persons participating in the picket;

7. the proposals by the trade union to exercise control over the picket;

8. the conduct of the picketers.