1. In order to perform their duties under Titles II to VI of this Regulation, competent authorities shall have, in accordance with national law, at least the following supervisory and investigative powers:
(a) to require any person to provide information and documents which the competent authorities consider could be relevant for the performance of their duties;
(b) to suspend, or to require a crypto-asset service provider to suspend, the provision of crypto-asset services for a maximum of 30 consecutive working days on any single occasion where there are reasonable grounds for suspecting that this Regulation has been infringed;
(c) to prohibit the provision of crypto-asset services where they find that this Regulation has been infringed;
(d) to disclose, or to require a crypto-asset servicer provider to disclose, all material information which might have an effect on the provision of the crypto-asset services concerned, in order to ensure the protection of the interests of clients, in
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