To ask the Secretary of State for the Home Department, how many (a) pieces of unlawful terrorist material have been taken off the internet, (b) hate preachers have been excluded from the UK, (c) organisations have been proscribed in the UK, (d) British citizenships have been revoked and (e) passports removed for terrorism-related reasons since May 2015; and how many arrests the police have made for terrorism-related offences since May 2015.
Following referrals from the Counter Terrorism Internet Referral Unit (CTIRU), social media providers have removed 280,000 pieces of illegal terrorist material since February 2010. Between 11 May 2010 and 31 December 2015, the Government excluded 181 people from the United Kingdom, including 69 exclusions on national security grounds.
There were 26 exclusions made between 1 January 2015 and 31 December 2015. 71 international terrorist organisations and a further 14 in Northern Ireland, have been proscribed. The Government Transparency Report, published on 23 February 2017, showed that the Royal Prerogative had been used to cancel or refuse applications for passports 23 times in 2015. Figures are not yet available for 2016. From March 2015 to March 2017 there have been 562 arrests for terrorism related offences.