Nils Christie was a very smart man who studied how people behave and how they are treated in the justice system. He wanted to figure out how to make the justice system fair for everyone, not just rich people or powerful people.
He found out that sometimes people get into trouble because they make a mistake, but other times it's because of things like poverty, inequality, or discrimination. He also found out that sometimes the punishment doesn't fit the crime, which means that the person gets in trouble for something small but the punishment is very big.
Nils Christie believed that we need to change the justice system so that it's not just about punishing people, but about helping them and making sure that everyone is treated fairly. He thought that we should focus on things like education and prevention rather than just punishment.
So, we can say that Nils Christie was a very smart man who wanted to make sure that everyone gets treated fairly by the justice system, and he thought that there are other ways to approach crime and punishment than just punishing people.