1,126
1,126 people were arrested under the Anti-Terrorism, Crime and Security Act 2000 between 11 September 2001 and 31 December 2006. Of the total, 1,166 people arrested under the Act or during police investigations, only 221 were charged with terrorism offences, and only 40 convicted to date.
Source: Home Office figures

Number of calls to the anti-terrorism hotline between 1 January 2004 and 31 March 2007

2004  >860

2005  >7,422
This figure includes the period 7 July 2005 until 8 August 2005 during which time 6,468 calls were recorded. This was in the immediate aftermath of the terror attacks on London on 7 July 2005

2006  >929

2007  >263
1 January 2007 to 31 March 2007

£2,000,000,000
By 2008, annual spending on counter-terrorism, intelligence, and resilience will reach £2bn, which is double what it was prior to 9/11.
Source: www.mi5.gov.uk

7,000
Over 7,000 police officers are already CBRN (chemical, biological, radiological and nuclear) trained, and more are in training.
Source: www.mi5.gov.uk

2
"The anti-terrorist hotline is staffed by two civilian staff and two police officers between the hours of 7am and 6pm, and outside these hours by one civilian staff member and one police officer. In the event of a major incident a contingency plan has been devised to substaintially increase the capacity to answer incoming calls," Tony Mcnulty, former Home Office Minister.

Since 2001 in relation to terrorist cases there have been:
£400,000 of cash seizures under the Anti-Terrorism, Crime and Security Act 2000
£110,000 of forfeited funds
£475,000 of funds seized under the Proceeds of Crime Act 2002
£47,0000 subject to Treasury asset freezes.
Source: www.mi5.gov.uk