Related Rule
Sierra Leone
Practice Relating to Rule 83. Removal or Neutralization of Landmines
Sierra Leone’s Instructor Manual (2007) provides that when anti-vehicle landmines are used, they must be removed after the operation ends. 
Sierra Leone, The Law of Armed Conflict. Instructor Manual for the Republic of Sierra Leone Armed Forces (RSLAF), Armed Forces Education Centre, September 2007, pp. 44–45.