[mike-cardwell]

I would expect it to be relative to the chance of a crime being committed by a citizen of one country to the other. Maybe Americans are more likely to be the "victim" of crimes from people in the UK than the other way round. Maybe the US just cares more about certain crimes than the UK does.

The numbers of extraditions in both directions is so small that you can't reasonably declare that there is any sort of imbalance happening. You can argue that the terms are unfair, but not the way they're being implemented.

On the other hand, there are clearly individual cases that are just wrong. This one is a perfect example. Which is why it's getting all this attention.