<p>The Home Office receives data on a quarterly basis from the National Counter Terrorism Policing Headquarters (NCTPHQ) on the number of examinations and subsequent detentions made in Great Britain under Schedule 7 to the Terrorism Act 2000. The data received from NCTPHQ cover the total numbers for Great Britain as a whole, with data for individual ports and airports not provided. The data are then published in the quarterly “Operation of Police Powers under the Terrorism Act 2000 and Subsequent Legislation” publication.</p>