Non compos mentis

“Non compos mentis” is a Latin phrase that means “not of sound mind” when translated to English. It is commonly used in legal contexts to describe a person who is mentally incapacitated or not in their right mind. This is often used as a defense in cases where someone’s mental state is relevant to their actions or legal responsibilities. The phrase implies that the individual lacks the mental capacity to make rational decisions or to understand the consequences of their actions.