Powers of officers

Any labour officer may– (a) enter freely and without previous notice at any hour of the day or night any place wherein he may have reasonable cause to believe that persons enjoying the protection of any law relating to employment are employed, or accommodated, and inspect such place; (b) carry out any examination, test or inquiry which he may consider necessary to satisfy himself that any law relating to employment is being strictly observed and, in particular, may– (i) interrogate alone, or in the presence of a witness, the employer or the staff of an undertaking or any worker on any matter concerning the application of any law relating to employment or apply for information to any other person whose evidence he may consider essential; (ii) require at all reasonable times the production of any books, registers or other documents, the keeping of which is required by any Act or regulation relating to conditions of work, in order to see that they are in conformity with the law, and may copy such documents, or make extracts from them; (iii) enforce the posting of notices required by any law relating to employment; (iv) take or remove in sufficient quantities for purposes of analysis, samples of materials and substances used or handled, subject to the employer or his representative being notified of any samples or substances taken or removed for this purpose. The method of taking such samples shall be prescribed by the