Subject to Article 17(10), information obtained in consequence of the exercise of a relevant power, with or without the consent of any person, shall be admissible in evidence against that or any other person.

Without prejudice to the generality of sub-paragraph (1), information obtained by means of monitoring or other apparatus installed on any premises in the exercise of a relevant power, with or without the consent of any person in occupation of the premises, shall be admissible in evidence in any proceedings against that or any other person.