We understand that BN was not informed about the reasons for her removal but her legal representative said that it is not unusual when legal proceedings are continuing for an asylum claimant who is not believed to be a risk to abscond to be released.
BN is believed to be heading for a different part of London from where she formally resided.
BN's Judicial Review deadline in on Friday. This is not a hearing but the deadline for receipt of new evidence which would, in the case of BN, show the specific threat if she was to be removed.
If this review is accepted then a fresh claim for asylum can proceed.