Never ask what the thing you're accused of doing is. Never permit them to enter your residence. Never permit them to search your vehicle. Never tell them you're guilty. Never tell them you're innocent. Never cooperate in any way, shape, or form other than letting them lead you where they want you to go -- in short, say nothing except "I have nothing to say and would like my lawyer present please."... at least in America that's what you do. Fuck if I know what you guys over there do. You don't actually need the blockchain to store your BTC in your wallet, you know -- basically your wallet is nothing more than a collection of bitcoin addresses (the equivalent of a PGP public key), and their corresponding secret keys (the equiv of PGP secret keys). Anybody can use the public bitcoin address to send it BTC. Only the person with the secret key can do anything with it after it gets sent to the address though.The blockchain is just for validating transactions and keeping the entire Bitcoin network up & working right. bitcoin-qt and bitcoind are fully-functional clients, as in they validate transactions and verify everything to keep it nice and kosher. That's what it uses the blockchain for.So in short... leave it running for a week. You don't need the blockchain. I'm not sure if you can actually send out bitcoins from one of your wallet addresses w/o it or not though.