Someone stole the car with the baby inside. Police caught the thief, but there is no car or the baby. There is a heatwave and the baby can last max 2h in the car. The thief panicked and dumped the car somewhere. He is not willing to tell where it is.
Beating him up to get the info is acceptable ethically.
edit: Americans (and others) have been taught to believe in torture like a religion, to continue to associate torture with truth. Torture is an argument; you're arguing with people that it's in their best interest to do what you want them to do. It is rarely an appropriate argument, and rarely an effective argument. It's far easier and more effective to convince them that cooperating with you is the right thing to do, and that's still not easy. But there are tactics, such as complete isolation and control over their environment, rewards for any sort of cooperation, friendliness and human connection, actual rhetoric and discussion, periods of complete disorientation alternated with periods of calm, pandering to their egos. They don't work in two hours.
They did, but it didn't work
> Life is not a hollywood action movie.
This is an example from Stanford Encyclopedia of Philosophy.