1. Competent authorities shall be given all supervisory and investigatory powers that are necessary for the exercise of their functions. Such powers shall be exercised in any of the following ways:

(a) directly;

(b) in collaboration with other authorities;

(c) under their responsibility by delegation to entities to which tasks have been delegated;

(d) by application to the competent judicial authorities.

2. The competent authorities shall have the power to:

(a) have access to any document in any form and to receive a copy of it;

(b) require information from any person related to the activities of the AIFM or the AIF and if necessary to summon and question a person with a view to obtaining information;

(c) carry out on-site inspections with or without prior announcements;

(d) require existing telephone and existing data traffic records;

(e) require the cessation of any practice that is contrary to the provisions adopted in the implementation of this Directive;

(f) request the freezing or the sequestration of assets;