The Mental Health Act (MHA) legislation dates back to 1990 and allows individuals with mental health issues, who are at risk of causing harm to themselves or others, to be apprehended by police and detained. Most detentions last a few days and 80 percent are less than one month. However, there are rare cases (about two percent) where detentions last more than six months and individuals can be detained indefinitely as result of repeated renewals of the detention period.