1. Changes in the definition of crime, including crimes associated with cars and race-related crimes
2. Old crimes continued in new forms due to technological developments
3. Changes in attitudes led to a focus on tackling causes of crime and reforming criminals
4. Abolition of the death penalty
5. Introduction of non-custodial punishments
6. Changes to policing due to increased government responsibility and technological developments
7. Women began taking on roles in policing