(1) Forced labour is prohibited.

(2) It shall not constitute forced labour:

(a)military service or activities carried out in its place by those who, according to the law, do not satisfy compulsory military service;

(b) the work of a convicted person, performed under normal conditions, during the period of detention or conditional release;

(c) benefits imposed in the event of calamity or other danger, as well as those which are part of the normal civil obligations laid down by law.