Classes are an important component of convicted prisoners which come into effect once their cases become final until the termination of their sentence terms. Classes of convicted prisoners will be a basis to identify rights and privileges of prisoners such as eligibility for royal pardon, good-conduct allowances, trustee appointment, public work outside prison, gaining conveniences in prison, parole, etc.


The 6 classes of convicted prisoners:

(1)    Excellent

(2)    Very Good

(3)    Good

(4)    Moderate

(5)    Bad

(6)    Very Bad


When a prisoner is convicted he/she will be classified as “Moderate class prisoner”


However, a re-offending prisoner having previously committed severe offenses will be classified as “Bad class prisoner”




(1) Regular Class Promotion:

The prison’s consideration committee to promote class of prisoners will hold twice a year at the end of June and December as an operation of regular class promotion based on the criteria stipulated by the Department of Corrections.


(2) Special Class Promotion: 

The prison’s consideration committee to promote class of prisoner may hold a meeting to consider the special class promotion or leaping class promotion to certain prisoners who have performed prevalent behaviours such as assisting the staff to solve escape incident, assisting the staff or other people in a harmful situation, risking their health or safety to prevent riots or disturbances prisons, assisting the staff to extinguish fire incident in prison facilities, or other similar incidents.


If a prisoner breaks prison rules or regulations his/her class of prisoner will be retrograded at least one or more levels depending on the violence of the wrongdoing. For example, when a prisoner escapes from the prison and is re-arrested later on, he/she will be instantly retrograde to “very bad class” regardless of the previous level.