Correspondence

Following publication of the chart titled “Top 10 CD application types by communications data (CD) application volume May–July 2025”, we have identified an error in the underlying data processing. This resulted in the filtering of applications that should have been included, leading to a significant undercount in the total volume presented.

We have now resolved this issue and published the corrected chart here. We apologise for any confusion caused.

Letter from the Rt Hon. Lord Justice Singh, President of the Investigatory Powers Tribunal, to the Investigatory Powers Commissioner, Sir Brian Leveson, in the case of Beth v Security Service [2025] UKIPTrib 8.

Letter in response to Reprieve on publication of statistics relating to The Principles.

Notification from the Investigatory Powers Commissioner to those affected by an error made by Home Office Immigration Enforcement.

A letter from the Investigatory Powers Commissioner to the Home Secretary with an assessment on the scheduled renewal of emergency measures provided for in the Coronavirus Act 2020 to appoint Temporary Judicial Commissioners.

A letter from the Investigatory Powers Commissioner to the Home Secretary Rt Hon Priti Patel MP following the outbreak of the Covid-19 pandemic requesting emergency powers in the Coronavirus Act 2020 be exercised in order for Temporary Judicial Commissioners be appointed.

A direction from the Prime Minister to the Investigatory Powers Commissioner instructing them to expand their remit to oversee the application of “The Principles Relating to the detention and interviewing of detainees overseas and the passing and receipt of intelligence relating to detainees”.

A letter from the Home Secretary to the Investigatory Powers Commissioner requesting they expand their remit to oversee the compliance of the National Crime Agency and SO15 Metropolitan Police Service with “The Principles Relating to the Detention and Interviewing of Detainees Overseas and the Passing and Receipt of Intelligence Relating to Detainees.”

A letter from the Investigatory Powers Commissioner to the Prime Minister outlining his conclusions and proposals on how the Consolidated Guidance could be improved.

The Investigatory Powers Commissioner’s response to Harriet Harman MP on their review into the use of Juvenile Covert Human Intelligence Sources (JCHIS).

A response to Chair of the Joint Committee on Human Rights Harriet Harman MP on the use children as Covert Human Intelligence Sources as requested by Baroness Williams, Minister of State for the Home Office.

A letter from Chair of the Joint Committee on Human Rights Harriet Harman MP to the Minister of State for Security copying in the Investigatory Powers Commissioner seeking explanations about the use of children as Covert Human Intelligence Sources (CHIS) to gather information for public authorities.

The Prime Minister’s direction to the Investigatory Powers Commissioner to keep under review the application of the Security Service’s guidelines on the use of agents who participate in criminality and the authorisations issued in accordance with them.