With 1000 dollars each, it seems that bribing with bitcoin would be a good idea. One USB stick will do the job with no third party required.
Either if you bribe via dollars or bitcoin,its not good for society.But if you are still willing to bribe,better go with bitcoins.Its safe and secure.No more cash handlings.No more bank transactions.Just a click to send btc from your wallet to the other's address.It seems officers who wish to get bribe would insist the briber to give him in only bitcoins in future.