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Sierra Leone
Practice Relating to Rule 146. Reprisals against Protected Persons
Sierra Leone’s Instructor Manual (2007) provides: “Reprisals against civilians/war victims are prohibited”. 
Sierra Leone, The Law of Armed Conflict. Instructor Manual for the Republic of Sierra Leone Armed Forces (RSLAF), Armed Forces Education Centre, September 2007, p. 36.
The manual further states: “Since civilians do not take part in hostilities, it is always our Duty to… [p]rotect them against … vengeance (reprisals).” 
Sierra Leone, The Law of Armed Conflict. Instructor Manual for the Republic of Sierra Leone Armed Forces (RSLAF), Armed Forces Education Centre, September 2007, p. 36.
(emphasis in original)