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(b) To enter by day any premises which they may have reasonable cause to believe to be liable to inspection; and (c) To carry out any examination, test, or inquiry which they may consider necessary in order to satisfy themselves that the legal provisions are being strictly observed, and in particular — (i) To interrogate, alone or in the presence of witnesses, the employer or the staff of the undertaking on any matters concerning the application of the legal provisions ; (ii) To require the production of any books, registers, or other documents the keeping of which is prescribed by national laws or regulations relating to conditions of work, in order to see that they are in conformity with the legal provisions, and to copy such documents or make extracts from them; (iii) To enforce the posting of notices required by the legal provisions ; (iv) To take or remove 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 such purpose. 2. On the occasion of an inspection visit, inspectors shall notify the employer or his representative of their presence, unless they consider that such a notification may be prejudicial to the performance of their duties. Article 13 1. Labour inspectors shall be empowered to take steps with a view to remedying •defects observed in plant, layout, or working methods which they may have reasonable ♦cause to believe constitute a threat to the health or safety of the workers. 2. In order to enable inspectors to take such steps they shall be empowered, subject to any right of appeal to a judicial or administrative authority which may be provided (by law, to make or to have made orders requiring—(a) Such alterations to the installation or plant, to be carried out within a specified time limit, as may be necessary to secure compliance with the legal provisions relating to the health or safety of the workers ; or (b) Measures with immediate executory force in the event of imminent danger to the health or safety of the workers. 3. Where the procedure prescribed in paragraph 2 is not compatible with the .administrative or judicial practice of the member, inspectors shall have the right to apply -to the competent authority for the issue of orders or for the initiation of measures with ■immediate executory force. Article 14 The labour inspectorate shall be notified of industrial accidents and cases of .occupational disease in such cases and in such manner as may be prescribed by national laws or regulations. Article 15 Subject to such exceptions as may be made by national laws or regulations, labour .inspectors — (a) Shall be prohibited from having any direct or indirect interest in the undertakings under their supervision; (b) Shall be bound on pain of appropriate penalties or disciplinary measures not to reveal, even after leaving the service, any manufacturing or commercial secrets or working processes which may come to their knowledge in the course of their duties ; and

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