Thousands of people are detained and questioned under Schedule 7 each year, with the majority being from ethnic minority backgrounds.
In August, solicitor Fahad Ansari was detained by counterterrorism police under Schedule 7 of the Terrorism Act 2000 upon his return to the UK from a family visit in Ireland.
This law permits police to stop an individual at the border to investigate whether they have been involved in the preparation, instigation or commission of an act of terrorism.
The police can exercise this power without grounds for suspicion and question individuals for up to six hours without disclosing the reason for the stop.
Asim Qureshi notes that in his own experiences with Schedule 7, the questions asked have focused on his political opinions, religious beliefs, and community, rather than any potential terrorist plot.
Author's summary: Misuses of the Terrorism Act affect thousands yearly.