Sending criminals to the prison is not the best method of dealing with them It is an inevitable argument that criminals should be imprison or not. Some people believe those offenders could be reformed well by education and occupational training. I have reservations that. Firstly, no one can guarantee that criminals will not re-offend. There are plenty of examples show that prisoners commit again when they are released, which threats our society and do harm to the victims psychologically. Secondly, Education and job training are not the crucial fact of criminal prevention. Many criminals are well-educated and work well. Generally, the cases those persons did are more harmful to society than the ones did by the illiterate. Thirdly, sending criminals to the prison is a kind of revenge for comforting victims. Victims got not only physical harm but also psychic harm. Bodily injury could be cured by medicine. However, seeing foes be punished is the only active drug to treat the soul of victims. Putting culprits into jails may give them opportunities to make friends, share experience of breaking the law and teach illegal skills with each other, which might easily make their behavior worse. Notwithstanding classifying convicts and teaching them in different class would help to avoid this situation. Apart from that, citizens may worry about that criminal record makes criminals finding jobs more difficult, which drives them commit be offenders. I reckon that government should help them protect their privacy and eliminates discriminations. To sum up, incarceration is a necessary approach to reduce offence. Instruction sometimes has no help for dealing with criminals.