While it is still held in the UK that anyone who says nothing is guilty, it has been rather a long time since a judge has directed a jury to view a suspects silence as an admission of guilt.
So the best advice I ever heard still stands;
If you are ever arrested for anything, say nothing & continue to say nothing no matter what you are threatened with or presented with. Even when / if you get legal representation, remain silent even towards your legal representative. They are not there to get you out or to help you, they are there to make the process as quick as possible (while making the most money possible) & the best way to do that is to get you to confess.
or more succinctly
Nobody talks, everyone walks
Remember the cops doing the interview are allowed to misrepresent the truth in order to get a confession & they are not in charge of how the CPS might proceed against you.
Even if you find yourself in court, remain silent. Finding yourself in contempt of court is a much better prospect than what you have being charged with.