Schedule 3 to the Counter-Terrorism and Border Security Act 2019 gives police the power to stop, question, search, and detain a person at a UK port to determine whether they are involved in hostile activity. The powers also allow an examining officer to retain, copy, use and destroy an article which is found during a search.
The Investigatory Powers Commissioner (IPC) may authorise retention and use of an article found during a search. This includes authorising retention and use of a copy of an article that consists of or includes confidential material. The IPC can also authorise destruction of any such articles. The IPC also reviews and reports on the operation of the Schedule.