Does imprisonment cut crime?
Instead he argues that the fall in the crime rate in the 1990s was because of an increase in the country's prosperity.
Speaking to judges, Mr Clarke suggested that an increase in the employment rate had a greater effect in reducing offending than sending people to prison. Instead, he favours rehabilitation and community sentences.
Does a prison sentence stop a criminal re-offending? Do alternatives to prison work? Have you had experience with the prison system?
This debate has now closed. Thank you for your comments.