Authors: Dr. Nathan Herrmann and Roger D. Lee

A will, gift, or other juridical act is void if driven by a delusion as to fact, motive, or character. This paper explores the legal and medical definitions of “delusions”, with discussion on topics such as:

• Delusions contrasted with mistaken beliefs
• Delusions contrasted with disorders of the mind
• Lay and medical evidence of delusions

This paper was presented at LESA’s The Impact of Delusions in Capacity Cases webinar on June 1, 2023.