CHAPTER IV Monitoring and penalties Section 22 Monitoring 1. It incumbent upon ARCOM to monitor compliance with the provisions of the present Decree-Law through its employees mandated to do so or other agents duly credentialed by the ARCOM Board of Directors. 2. The employees and agents referred to in the preceding subsection are bound to not disclose information or data that may come to their knowledge in the exercise of their functions and that constitute either commercial or industrial secret. Section 23 Offences and penalties 1. Any natural or corporate person who violates the provisions of this Decree-Law or regulations published as a follow-up hereto shall be subject to the applicable penalties provided by law and in the respective concession contract or licence, namely where such person: (a) wilfully causes any prejudicial interference with the transmission of a service provided under the corresponding contract or licence; (b) offers a telecommunications service subject to a concession contract or licence, knowing that the same service is not covered by a proper concession contract or licence; (c) refuses to furnish information or to produce documents to the regulatory entity without good reason or obstructs any investigation into an alleged infringement; (d) wilfully modifies or interferes with the tenor of any communication sent through the public telecommunications network. 2. The offences provided in this Decree-Law shall be punishable with a fine of US$ 500 to US$ 5,000 or of US$ 5,000 to US$ 50,000, depending on whether such offences have been committed by a natural or corporate person, respectively. 3. Attempt to commit, or negligence in connection with, the offences provided in the present Decree-Law shall be punishable. 4. The regulatory entity may confiscate and alienate any unauthorised radio sets or other telecommunications equipment or if used to commit any offences within the scope of application of the present Decree-Law. Section 24 Processing and imposition of fines