Pramudya Octavinanda has very interesting ideas on how to design anti-corruption policy in response to my earlier posting here. Let me start with his points that I agree with.
First, the main objective of penal sanction system should be to recover the state's assets corruptors stole as much as possible. Second, it also has to prevent corruptors to buy (il)legal protection and political position that allows them to steal in the first place and afterward. In other words, it should make bad guys miserably poor.
Yet, what I don't really agree with is the idea to link two or more anti-corruption agencies for the sake of efficiency. If you let this happen, what we would likely have is an anti-corruption monopolist. This monopolist can sell their services either to corruptor or to the state whichever pays higher price. So if you want them to work in favor of the state and arrest the corruptor, the state has to pay or provide incentive more than what corruptor can do. This is expensive.
So I think I'd still opt for competition amongst anti-corruption agencies.
Now let's discuss Pram's objection on this competition. He said that without (formal) case transferability, competition won't work. But this is actually the very basic premise of my proposal for more competition -- that is to increase transferability. In my idea of transferability, bad guys can not rely on one agency to get protected, because other agencies can still arrest them legally. Competition would remove privilege of one agency over another; and with this, a case can be "transferred" to any agency willing to arrest the bad guy.
As for incentive for these competing agencies, as also asked by Mova in his comment, I'm thinking to incorporate Pram's insight on making corruptors poor and maximizing state's stolen assets recovery in incentive structure as follows.
Let's make the state (say President, or the Ministry of Finance) determine how much money they want to see back to state's coffer. If there is 100 bn IDR state's loss in a corruption case, they can set, say, 90 bn IDR recovery target and announce this to the competing anti-corruption agencies. Any agency taking this offer has to provide 90 bn IDR to the state but can take the remaining receipt, i.e 5 bn IDR if the agency can make the bad guy repay 95 bn IDR to the state.
So the state doesn't need to add more resources (higher salaries, bonus, etc) to anti-corruption agency, but any residual outcome belongs to the winning agency.
Do you think it will work?