private interest, for information concerning identity to be produced on examination of witnesses or of a party in the proceedings under oath. In examination under paragraph two, point 4 or 5, the court shall scrupulously ensure that no questions are put which might encroach upon a duty of confidentiality in excess of what is permissible in each particular case. Art. 4. No public authority or other public body may inquire into the identity of the author of material inserted, or intended for insertion, in printed matter, a person who has published, or who intends to publish, material in such matter, or a person who has communicated information under Chapter 1, Article 1, paragraph three, except insofar as this is necessary for the purpose of such prosecution or other action against him or her as is not contrary to the provisions of this Act. In cases in which such inquiries may be made, the duty of confidentiality under Article 3 shall be respected. Nor may a public authority or other public body intervene against a person because he or she has in printed matter made use of his or her freedom of the press or assisted therein. Art. 5. A person who, whether through negligence or by deliberate intent, inserts in printed matter the name, pseudonym or pen-name of the author, or, in a case under Article 1, the editor or source, against his or her wishes, or disregards a duty of confidentiality under Article 3, shall be sentenced to payment of a fine or to imprisonment for up to one year. The same penalty shall apply to a person who, whether through negligence or by deliberate intent, publishes in printed matter as that of the author, editor or source, the name, pseudonym or pen-name of a person other than the true author, editor or source. Inquiries made in breach of Article 4, paragraph one, sentence one, if made deliberately, shall be punishable by a fine or imprisonment for up to one year. Deliberate action in breach of Article 4, paragraph two, provided the said measure constitutes summary dismissal, notice of termination, imposition of a disciplinary sanction or similar measure, shall be punishable by a fine or imprisonment for up to one year. Legal proceedings may be instituted on account of an offence under paragraph one only provided the injured party has reported the offence for prosecution. 217