Quantifying lies in medical expert assessment

Although lying is ubiquitous and present in all fields, there are very few medical references dealing with this subject. The aim of this study is to quantify and qualify lying in medical expert assessment. It is a retrospective study of 32 medical expert assessment cases, separated into two groups. The first analyses 16 people who were the subject of a judicial expert assessment. The second concerns a mandated consultant for insurances or mediation. The results appear to be influenced, essentially, in both groups, by the presence of an initial false diagnosis which is itself the main reason for the medical expert assessment, and by psychiatric disorders requiring treatment with psychotropic drugs. Intentional fraud appeared to be in the minority.