A large proportion of recent offences using explosives have been related to cash machine theft, as opposed to the guy Fawkes style attacks of centuries passed.
Participating in Organised Crime is a new offence created by the Serious Crime Act 2015 legislation. Section 45 of the Act makes it an offence to participate in the activities of an organised crime group.
This article details the extent to which making a threat is a criminal offence. If you make a threat intending that another would fear it would be carried out, you may be convicted for a criminal offence.