Proposition 83, the Sexual Predator Punishment and Control Act, Jessica’s Law, does not violate the “single-subject” rule because it involves criminal punishment as well as civil commitments. The initiative’s stated purpose was to strengthen and improve laws that punish and control sex offenders. An initiative does not violate the “single-subject” rule because it amends two statutory schemes so long as they are reasonably related to a common purpose. The purpose here is to monitor sex offenders, strengthen and improve laws that punish aggravated sexual assault, habitual offenders and child molesters, and to provide for their commitment and control.