"If a cop in the US lies to you, or searches your car without cause, or otherwise 'tricks' you, it's no more admissible that it would be in the UK. The issue (i

"If a cop in the US lies to you, or searches your car without cause, or otherwise 'tricks' you, it's no more admissible that it would be in the UK. The issue (in both countries) is proving the cop lied to you, tricked you" Well, my understanding is different. Here is an example: Suspect is in the police station being questioned and the police officer says "we know you did it, your friend who we arrested in the car with you said you did it. he just gave a statement. Why don't you just sign this confession now and we'll sort out a deal". (The police officer lied, the other person hadn't said anything let alone made a statement) In the US that would be admissible in court because it doesn't matter how the confession was reached, even lies (short of beating the suspect/etc). In the UK that would not be admissible because it would obtained through lying to the suspect. You are right though, no matter where you are in the world, by the time you are being questioned in the police station it is time to make sure you have legal counsel... and not the one provided to you by the state but a lawyer you already know. For this reason everyone should have a connection with an appropriate lawyer and have their information to hand in case of arrest.