supporting the competent authority in carrying out surveillance as provided for in Article 26 or in relation to surveillance programmes as provided for in Article 28;
tacú leis an údarás inniúil agus faireachas á dhéanamh aige amhail dá bhforáiltear in Airteagal 26 nó i ndáil le cláir faireachais amhail dá bhforáiltear in Airteagal 28;