[bArray]

You'll find in the UK that it's quite common practice to use the vagueness in the law to pin a different charge on somebody. Being rude to a police officer isn't a chargeable offense, yet it'll be treated as such. The police have no requirement or training available to actually understand the nuances of the law, nor are they updated when the law changes. The British police is mostly under-trained and under-funded, especially as you break out of the London bubble.

One of the major issues with UK law is it's vagueness and openness to interpretation, which is all of course by design. You don't tend to notice erosion until the ground beneath you collapses.

[marme]

In the US you would just get charged with resisting arrest. This is what happens when they ask for your ID and you refuse to give it to them. You wont be convicted but the fact that you can be arrested for resisting arrest without committing any crime is a problem