 Today, they make up nearly a third of the caseload, with a net increase of about 45 new sex offenders each month.Parole officers assigned to the Sex Offender Management Unit use a "containment" approach to sex offender supervision.This approach includes intensive parole supervision and information sharing with partner law enforcement agencies; sex offender-specific treatment to help control sex offenders' impulsivity; and will soon include polygraph examinations in certain cases, to obtain sexual history information and monitor offenders for behaviors that increase the risk of re-offense.