The arrests and any subsequent charges will in fact be made under s.71 of the 2009 Coroners and Justice Act. Guidance on the implementation of the section was issued by the MoJ last year, and is freely publicly available online.
Why is this important? When this vast, comprehensively resourced national news organisation is incapable of undertaking the most simple fact-checking it shows itself gullible and willing to believe any old tosh that anyone in authority tells it, and to broadcast the same tosh to a credulous public accustomed to truth from the BBC. Readers, it has feet of clay.