Biological protective factors of criminal offending: implications for risk assessment research and practice

Despite the recognition of the practical and theoretical contributions of protective factors in risk assessment practice, the field has granted significant attention to psychosocial protective factors to the apparent neglect of biological protective factors. This review found a wealth of evidence which strongly and convincingly indicates that biological factors such as high intelligent quotient, executive functioning, skin conductance, and resting heart rate offer protection against criminal and antisocial behaviors. More importantly, the literature is supportive of the view that both risk and protective factors co-occur in the same variables, thus questioning the practice of classifying a set of variables as strictly risk or protective. Specifically, the risk–protective effect is contingent upon individual’s rating as high or low on the factor in question. It is recommended that researchers, academicians, and practitioners strive in their efforts to canvass other salient factors beyond the psychosocial factors as these factors can significantly and positively impact the risk assessment field, both theoretically and practically.