Any form of punishment that is effective in maintaining law and order is justified. Do you agree?

I agree that any form of punishment that is effective in maintaining law and order is justified.
Punishments exist in legal systems for 2 main reasons. The first, to help victims of crimes address their grievances. The second, is to deter criminals from committing crimes, hence in a way maintaning law and order.

Many argue that some harsh punishments that are in place such as the death penalty, infringe into human rights. The death penalty as argued is infringing into the criminal's right to live. However, many forget that the death penalty has proven to be useful in many countries. The death penalty had managed to cause the homicide rate in the US to decrease since it was used again. Hence proving that harsh and brutal punishments do act as a deterrent to criminals.

Furthermore, if the crminal still commits the crime with these harsh, supposedly inhumane punishment in place, then the criminal really deserves to be punished. He must be a real fag to commit the crime even though he knew about these hefty consequences waiting for him, thus he deserves to be punished.

Therefore, any punishment is justified if it is effective in maintaining law and order. And if you do not want to receive such torturous punishments, do not commit any crime, especially in Singapore. Don't even think about littering.