Prisoners are typically categorised based on their assessed level of risk. The risk categorization helps inform decisions regarding their placement, supervision, and access to certain privileges and programs. The general principles for adult men (women and children are slightly different) include the following risk categories:

  • Category A: This category includes prisoners who are deemed to pose the highest level of risk to the public and national security. These individuals are often convicted of serious offences, such as terrorism, murder, or organised crime. Category A prisoners are subject to strict security measures, including maximum security prisons and highly controlled movement and supervision.
  • Category B: Prisoners classified as Category B are considered to have a significant risk of escape or harm to others. They may have committed serious offences but are deemed to pose a slightly lower risk than Category A prisoners. Category B prisoners are housed in secure facilities with enhanced security measures.
  • Category C: This category comprises prisoners who are considered to have a lower risk of escape but still require secure conditions. Category C prisoners typically have committed non-violent or less serious offences. They may be housed in prisons with lower security levels compared to Category A and B facilities.
  • Category D: Also known as open or resettlement prisons, Category D facilities house prisoners who pose a minimal risk of escape or harm to others. These prisoners are usually approaching the end of their sentence and are preparing for release. Category D prisons have more relaxed security measures, and inmates may have opportunities for work, education, and greater community integration.

Risk categorization is not fixed and can be subject to reassessment based on changes in a prisoner’s behaviour, sentence length, or other relevant factors. The categorization helps inform decisions regarding prison placement, security measures, and opportunities for temporary release or town visits.