Other arguments in support of land reform point to the need to alleviate conflicting land laws, particularly in former colonies, where formal and informal land systems may exist in tension with each other. For example, in many countries in Africa with conflicting land laws, AIDS stigmatization has led to an increasing number of AIDS widows being kicked off marital land by in-laws. While the woman may have both customary and statutory rights to the land, confusion over which set of laws has primacy, or even a lack of knowledge of relevant laws, leave many AIDS widows at a significant disadvantage. Also, conflicting formal and informal land laws can also clog a country's legal system, making it prone to corruption.