"This is my country"
Mohammed Abdulkahar tells the story of terror raid that backfired
The UK Terrorism Act of 2000 gives police the power to hold suspects without charge for up to seven days (this is about to be raised to 28 days).
Between 11 September 2001, and 30 September 2005, nearly 900 people were detained under the Act; of 121 charged, 23 have been convicted of terrorism offences. Almost 500 were released. Some were handed over to immigration authorities. Others were cautioned, or held under mental health legislation.
14 people, including five Britons, are under control orders, a form of house arrest.