Over the past decade, violent crimes were not a scourge of Nigeria as a country. However, recently violent crimes have become scourge of Nigeria as a country. Currently in Nigeria, there is a higher increase of violent crime, including murder, rape, kidnapping, armed robbery, terrorism, and cultism. The present research investigated deficits in frontal lobes function and neurotransmitters as determinate of violent criminal behaviours among inmates in Onistha correctional center in Anambra State, Nigeria. The objectives of this research were to investigate the relationship between deficits in frontal lobes function and neurotransmitters as determinant of violent criminal behaviours among inmates in Onitsha correctional centre in Anambra State, Nigeria, comprising both male and female. Two instruments were used in the research, namely; Crime Behaviour Rating Scale (BRS), and Adolescent Decision-Making Questionnaire (ADMQ). Correlatonal studies were adopted in the study, and the result demonstrated that deficits in frontal lobes and neurotransmitters had a significant relationship with violent criminal behaviours. The study observed that deficits in frontal lobe and neurotransmitters have a significant influence on violent criminal behaviour. The study agrees with the findings of Achebe and Nweke (2023); and Reddy et al; (2018), which posited that damage to frontal lobe influence violent criminal behaviours.
Keywords: behaviours, centre, correctional, criminal, deficits, determinant, frontal, function, inmates, lobes, neurotransmitters, onitsha, violent