This Order amends the Regulation of Investigatory Powers (Juveniles) Order 2000 (S.I. 2000/2793), which contains special provisions for the authorisation of covert human intelligence sources who are under the age of eighteen. The amendments extend the duration of such authorisations from 1 month to four months and clarify safeguards for meetings with sources under the age of sixteen.
Link: The Regulation of Investigatory Powers (Juveniles) (Amendment) Order 2018
Source: Legislation .gov.uk