Info about 'Non compis mentis'
The exact Latin translation of "Non compis mentis" is the word 'Non' meaning "not", 'compos' meaning "having (command of)", and 'mentis' meaning "mind".
A person deemed to be "Non compis mentis" is mentally incapable of managing one's affairs. The notion that an person who suffers from madness may not bear the full weight of responsibility for their actions dates back to ancient times.
The term is also used in everyday conversations to describe different forms of madness, whether it arise from sickness, lunacy or drunkenness. A person under the heavy influence of drugs can also be described as "Non compis mentis".