offences are now arrestable the previous concepts of arrestable and serious
arrestable offences no longer apply.
This has an impact on the various “trigger powers”
that accompanied these offences. As with the changes to arrest the use of
“trigger powers” will also be governed by the concept of necessity whereby
authorisation must only be given where the use of such powers are necessary and
proportionate to the needs of the investigation.
However, these trigger powers can only be used for
indictable offences (i.e. an offence which can be prosecuted either way or on