Most people have a reflexive urge to talk to the police. They think by doing so they can either talk themselves out of trouble or get the police on their side. Nothing will offer you a greater protection than staying quiet.
The police are not your friend and not a shoulder to cry on or a referee willing to step in and help settle disputes. Nor are they interested in hearing your side of the story. Police don't question people to establish innocence, they question to establish guilt. And if you say anything that sounds like an admission, in all likelihood, they will prosecute you.
It's not your job to prove your innocence. It is the police's job to prove your guilt. Explaining yourself is more likely to implicate than vindicate. This is because the more you say, the more likely you'll say something wrong. Suspicion is at all of a policeman's trade. The more you talk, the more they'll assume you have something to hide.
It's not illegal to refuse to speak to the police. You cannot be prosecuted for not answering police questions. It's your fundamental right NOT to talk to the police.
If you are approached in the street and the police start asking questions, ask them instead if they have a reasonable suspicion that you've broken the law. The answer is anything other than: "No, leave."
Despite what most of the public think, the police have no powers outside of arrest to detain you just to ask questions.
Staying silent will greatly reduce your chances of being prosecuted. Over 50 per cent of all prosecutions for petty offences are brought off the back of admissions made by those dumb enough to talk to the police.
Be the safe minority!
DON'T talk to the police!