X. Sex Offender Registry.
Registration. A person who has been convicted of certain sexually related criminal offenses is required to register as a sexual offender with the sheriff of the county of the person's residence.158 A person must register within five days of a conviction for which the person is not placed in confinement, or within five days of being released from custody.159 A person who is required to register must also reregister within five days of changing residence or within five days of changing the person's name.160 A person must also notify the sheriff of the county of residence if the person moves out of state and register in that new state if that state requires sex offenders to register.161
Penalties. A person who knowingly fails to comply with any registration requirements commits an aggravated misdemeanor for a first offense and a class "D" felony for any second or subsequent offense.162 A person who knowingly fails to comply with any registration requirements and subsequently commits a sexually related criminal offense commits a class "C" felony.163 The Iowa Supreme Court has concluded that registering for the Sex Offender Registry does not violate the Ex Post Facto Clause of the federal and state constitutions.164

