https://homeofficemedia.blog.gov.uk/2019/02/19/shamima-begum-home-office-statement/

Shamima Begum - Home Office statement

Following reports that Shamima Begum has been deprived of her UK citizenship, the Home Office has issued the following statement:

 A Home Office spokesperson said:

 “In recent days the Home Secretary has clearly stated that his priority is the safety and security of Britain and the people who live here.

 “In order to protect this country, he has the power to deprive someone of their British citizenship where it would not render them stateless.

 “We do not comment on individual cases, but any decisions to deprive individuals of their citizenship are based on all available evidence and not taken lightly.”