An opinion published this week by the 1st District Appellate Court adds important clarifications to the requirements for convicting a defendant under the Sex Offender Registry Act, according to an offender who successfully challenged his prosecution earlier this year. In an unpublished order issued June 19, the 1st District panel found that Cook County prosecutors failed to produce evidence showing that Kevin J. Jones was required to register under the 1996 law 33 years after his initial sex-offense conviction.Jones’ state …