ABSTRACT
Studies have shown that, according to reports, people with frontal syndrome have anti-social and violent behaviours.1 There are many neurobiological and neuropsychiatric reasons behind the increase in criminal activity. Frontal lobe syndrome can occur in stroke, head injury, degenerative changes, and multiple sclerosis and so on. Frontal lobe syndrome can damage the amygdala or orbital cortex, leading to the behaviour of people with mental illness.1 The purpose of this review is to focus on the need to identify executive dysfunction, cognitive impairment, and dementia that often lead to violent behaviour. This review was conducted through exhaustive researches in different databases using the keywords frontal syndrome, violent behaviour, and cognitive dementia. The conclusion is that frontal syndrome plays an important role in the execution of violent and anti-social behaviours. key messages: Frontal lobe syndrome cause loss of functions like judgment power, cognition, dementia which causes personality change leading to antisocial behavior.