Namibia
Practice Relating to the Prohibition of Certain Types of Landmines
Namibia’s Constitution (1990) provides:
Unless otherwise provided by this Constitution or Act of Parliament, the general rules of public international law and international agreements binding upon Namibia under this Constitution shall form part of the law of Namibia. 
Namibia, Constitution, 1990, Article 144.
Namibia participated in the “Ottawa Process” which led to the adoption of treaty banning anti-personnel landmines, speaking in the government session of the Fourth International NGO Conference on Landmines in February 1997 in Maputo, Mozambique, and attended the OAU meeting in Kempton Park, South Africa in May 1997 and the mine ban treaty preparatory meetings in Vienna, Austria, Bonn, Germany, and Brussels, Belgium. Namibia endorsed the Final Declaration of the Brussels Conference on Anti-personnel Landmines in June 1997. It voted in favour of the UN General Assembly resolutions in support of a ban on anti-personnel landmines in 1996, 1997 and 1998. 
Landmine Monitor Report 1999: Toward a Mine-Free World, available at http://www.the-monitor.org/index.php/publications/display?act=submit&pqs_year=1999&pqs_type=lm&pqs_report=namibia&pqs_section=.