This chart, RSO (Registerable Sex Offense) Arrest Counts, from the presentation says it all. It depicts every sex offense arrest in New York State for 21 years (10 years before the enactment of the sex offender registration law to 11 years afterward). The vertical line separates the before and after periods. The green line at the bottom shows arrests for those who had previously been convicted of a sex offense. The chart dramatically illustrates that 96% of those arrested for sex crimes in New York State have no prior convictions for sex crimes and thus are not listed on any registry. It also dramatically illustrates that the registry has had no impact on recidivism. Contrary to popular opinion, sex offender recidivism was low before the registry and low afterwards.
(Note that "RSO" here does not mean "registered sex offender" but "registerable sex offense.") (Click the image to enlarge)
● Two hundred and fifty-two months (21 years) of statewide arrest data from 1986 [10 years before SORA] to 2006 [11 years afterward]
● Included every sexual offense arrest [and therefore every sex offender arrested] during that time
– Over 170,000 sexual offenses
– Over 160,000 different sex offenders
Data is taken from Does a Watched Pot Boil? A Time-Series Analysis of New York State’s Sex Offender Registration and Notification Law, Jeffrey C. Sandler, Naomi J. Freeman, Kelly M. Socia, Psychology, Public Policy, and Law (2008), 14, 284-302