https://cellebrite.com/en/blog/the-access-gap-is-closed-what...
https://www.magnetforensics.com/graykey-for-android-devices/
Under normal circumstances, you don't have. BUT there is schedule 7 powers: https://www.counterterrorism.police.uk/what-we-do/counter-te...
> Under Schedule 7, a police officer with the mandated accreditation does not need prior authority or suspicion to stop, question, search, or if necessary, detain someone. However, they may only stop and question a person for the purpose of allowing a determination of whether that person appears to be someone who is or who has been concerned in the commission, preparation or instigation of acts of terrorism.
How this is abused on the other hand, I presume, might depend on your skin shade.