There are tons of proof and examples of this being false. Lots of example of police targeting people then finding the law they broke, instead of starting with a crime and finding who did it
The US secret service has offices in over a dozen countries, including China.
Some western people are completely out of bounds. You're basically suggesting trading humans. It's called slavery. To arrest someone and trade him for someone. What's going on. You're not the only person suggesting it. I saw similar comments on other websites. For example someone suggested to arrest some random Russian sportsman and trade him for American sportsman girl who was arrested because of marihuana found on her in airport.
It's just wrong. It creates all the kinds of wrong incentives. If you think that someone is a spy and you can prove it, go ahead and put him in jail or deport him or apply whatever measures law requires. But no human trading.