a serious offence is in progress or has just happened
someone is in immediate danger of harm
property is in danger of being damaged
a serious disruption to the public is likely
Your call should be answered within ten seconds. A trained member of staff will ask you what happened and where you are. They may ask you if you need any other emergency services, such as an ambulance.
If you have a hearing or speech impairment, use the textphone service on 18000.
Silent 999 calls
If you're in danger but you can't talk on the phone, you should still call 999, then follow these instructions depending on whether you're calling from a mobile or a landline.
Anti-Terrorist Hotline - 0800 789 321
Call the UK Anti-Terrorist Hotline on 0800 789 321 if you've seen or heard something you think could suggest terrorist activity.