Sierra Leone is a low-income country where 7.3% of its expenditure comes from the state and the rest is from charity and private expenditure, and therefore there is no official budget for mental health. Although many postcolonial countries have ratified international laws, many still have colonial discriminatory laws like ‘Lunacy Acts’ as national law, one of these countries are Sierra Leone. Sierra Leone has ratified the International Covenant on Economic, Social and Cultural Rights but hasn’t abolished ‘The Lunacy Act’ from 1902. ‘The Lunacy Act’ is a law against individuals with suspected mental health illnesses, therefore the focus of this thesis is mental health in Sierra Leone.

 Scholars believe that part of Sierra Leone's issues are due to Sierra Leone's colonial history. For that reason, this thesis has a postcolonial outlook for a deeper understanding of why 'The Lunacy Act' remains in a postcolonial Sierra Leone. To achieve that goal, a meticulous qualitative text analysis is needed. A comparison with ‘A postcolonial critique of Mental health’ will be made to help dissect the true postcolonial meaning of ‘The Lunacy Act’. Although the formal colonization is over, the ideological ones remain. This is noticeable through, for example, science. Western imperialism is not felt through physical colonialism such as borders and people, but also within cultural and political hegemony. An example of this is 'The Lunacy Act'. 

 The negative view of mental illness in postcolonial Sierra Leone persists due to the cultural hegemony. It is stronger than the political hegemony partly because the Sierra Leonean cultural hegemony cooperates with the thought system of Western psychiatry, meaning that the global south is more prone to mental illness, according to the colonial racialized system. In other words, "The Lunacy Act" is partly a tool of Western psychiatry and capitalism and that is why it has not been abolished in postcolonial Sierra Leone.