What is the defense for criminal liability that is used to assert a lack of criminal responsibility because, according to law, a person cannot have the requisite state of mind to commit a crime?

The defense for criminal liability that is used to assert a lack of criminal responsibility is insanity.

Explanation:

No person with a sound mentality is believed to be in the state to commit an intentional crime at any given time. It is the sudden and grieve provocation that motivates the person to make a move that would harm someone or cause substantial damage. The spontaneous response to this kind of provocation is referred to as insanity.