Let's start with the worst case scenario, needing fast action.
Threats
What can you do to escape danger? In some countries such as the UK and USA you can take out a restraining order. However, this does not always succeed.
When somebody is trying to kill you, or your child, you could take your child on a holiday to a foreign country and then change hotels. Take a trip from there to a different country.
Before sending a letter or making a phone call, you could go across the border to an adjoining country for the day. So that your location is not known or traceable. Rent your home to somebody who does not speak English who looks of a different race.
Witnesses
What if you cannot leave the country because you are needed in a court case?
1 In some cases it is possible to give evidence by video link from a separate room.
To avoid danger, to save the cost of travel, and missing work or medical appointments, you may be able to give evidence by video link from another country. I remember this being done in Singapore.
2 Your country might organize a witness protection scheme.
Changing Identity
You could change your name by deed poll.
You could adopt a pen name or professional name.
You could change to a shorter name, from Alexander to Alec or Al.
You could change back to your longer name, from |Al to Alexander.
You could alter the spelling of your name, eg from Jane to Jayne, or from Jayne to Jane.
You could marry somebody and take their family name.
You can change your email from your name to your status or profession. eg from John Smith at the Company to Treasurer at The Company.
Moving permanently overseas
Since Brexit you have to consider several legal and financial questions
1 Do you have the right to reside overseas permanently?
2 Can you buy property overseas?
3 Can you receive your pension overseas?
4 Can you avoid paying tax in two countries?
The cheapest form of accommodation is often camping.
If wartime or security causes your holiday, or return flight to be cancelled, and you need to return home for work, children's schooling, consider whether you can hop countries. You might use budget airline, private plane, taxi, bus, ferry, hire car, shared expense car. You could start a whatsapp group for all the passengers on a stranded plane, which cannot fly because the crew are over their flying hours limit.
To leave or return in a hurry, you could even buy an old or new car and sell it at the destination.
Useful Websites
https://www.college.police.uk/app/prosecution-and-case-management/victim-and-witness-care
