Look at the rest of Matt 5:38-41...
You have heard that it was said, "An eye for an eye and a tooth for a tooth." But I say to you, Do not resist one who is evil. But if any one strikes you on the right cheek, turn to him the other also; and if any one would sue you and take your coat, let him have your cloak as well; and if any one forces you to go one mile, go with him two miles.
Looks to me that Jesus preaches about giving. And if you give, that this will create enlightment.
So once again, how a Christian can accept even the slightest imprisonment for anyone is beyond me. The very idea of imprisonment goes against the idea of Christianity.
If a criminal decides to continue with evil deeds, then a true Christian have no right to forcefully stop him. He can only try to convince the criminal with love.
Jesus was a lover.
YIP
Zack
I found this @ desiringgod.org. It explains pretty closely how I feel about the "turn the other cheek" statement

What about turning the other cheek?
What, now, are we to make of Jesus' radical commands in Matthew 5:39-41? "Do not resist him who is evil; but whoever slaps you on your right cheek, turn to him the other also. And if anyone wants to sue you, and take your shirt, let him have your coat also. And whoever shall force you to go one mile, go with him two." How does this fit with what we have seen above?
First, we need to clarify what the problem is not. The problem is not that Jesus appears to be telling us to lie down and let evil overtake us. That is clearly not what he is saying. Instead, he is telling us what it looks like "not [to] be overcome by evil, but [to] overcome evil with good" (Romans 12:21). We have all seen the wisdom of Jesus' words here in our everyday lives. Much of the time, the most effective way to overcome evil is by not resisting. If someone says a mean word, it is far more effective to respond with kindness than with another mean word in return. If someone tries wrongly to cut you off on the freeway, it is usually best just to let them do it. If we would learn these principles, our lives would be much more peaceful and, ironically, we would be vindicated more often.
So the problem is not that it looks as though Jesus is telling us to let evil steam-roll over us. The problem is that it looks like Jesus is telling us that the only way we should ever seek to overcome evil is by letting it go and responding with kindness. It looks as though he leaves no place for using force in resisting evil.
Part of the answer to this difficulty lies in understanding the hyperbolic nature of much of the Sermon on the Mount. I don't think that Jesus is telling us never to respond to evil with force (such as in self-defense) or always to literally turn the other cheek when we are slapped any more than his command later in the Sermon on the Mount in Matthew 6:6 means that we should only pray when we are completely alone or his command in 5:29 means that some should literally gouge out their eyes.
Jesus himself drove the thieves away from the temple with a whip (John 2:15) and Paul at times insisted on his rights as a Roman citizen (Acts 25:11; cf. also the interesting instance of 16:35-40). Jesus is using hyperbole to illustrate what our primary disposition and attitude should be, not to say that we should literally give in to every attempt to do evil against us. That is part of the answer.
The main part of the answer, however, lies in remembering that Jesus is speaking primarily to individuals. He is not mainly addressing governments here, but is primarily speaking at the personal level. This text, then, shows that an individual's primary response to evil should be to "turn the other cheek," while the other texts we have seen (e.g., Romans 13:3-4) show that government's God-given responsibility is to punish those who commit civil crimes (murder, terrorism, acts of war, etc.).