You can be given bail at the police station after you've been charged. This means you'll be released from custody until your first court hearing. If you're given bail, you might have to agree to conditions like: living at a particular address.
Breaching police bail conditions without a reasonable excuse may lead to re-arrest and could constitute a separate offence like assault or witness intimidation. Failing to attend the bail return date is a criminal offence, and individuals may face a potential sentence of up to 12 months imprisonment.
Your bail conditions may stipulate that you: Must not travel outwith the UK – you may be asked to surrender your passport. Must live and sleep at a specified address each night – meaning you likely cannot stay overnight elsewhere.
First, the person is arrested and taken into custody. Next, a bail hearing is held where the court determines whether the person should be released on bail and sets the conditions for their release. These conditions may include surrendering one's passport, regular check-ins with the authorities, or a monetary deposit.
Risk management. The police may believe you are at risk of absconding, so they wish to extend bail to ensure you remain nearby, following your bail conditions (if not, you can be arrested). They need to prove they are still progressing with the investigation in order for the extension to be approved.