Prosecute the one accepting the bribes, not the one giving it. Working with law enforcement is... uh, not a crime, definitionally. So you've got to make it so that law enforcement cannot be criminal. Own goals all over.
Both sides are wrong on this, giving or accepting.
But more than that - giving bribes is fucking over people who cannot afford to give bribes so they are treated unfairly.
So not only it's a crime - it's also morally evil.
... Wait, what? You prosecute _both_.
> Working with law enforcement is... uh, not a crime, definitionally.
The "just following orders" defence is, fairly, notoriously, weak. "Just following requests" is presumably even weaker. If you assist law enforcement in doing something illegal, you shouldn't assume that you're magically in the clear.