Question to the Home Office:

To ask the Secretary of State for the Home Department, pursuant to the Answer of 12 February 2019 to Question 218253 on undocumented migrants, for what reasons clandestines detected at juxtaposed controls and at UK ports for the years since 2014 is classified as internal management information; and if he will publish his Department's definition of internal management information used for such purposes.

We do not routinely publish management information in answers to Parliamentary Questions as these answers cannot be subject to the same extensive assurance as official statistics outputs.

Border Force does not routinely publish data that does not meet the Home Office standard for publication or that could impact its operational effectiveness. There are no current plans to routinely publish this data, but this is kept under review by Minsters.