Synopsis As Introduced Amends the Criminal Code of 2012. Provides that public indecency also includes committing the proscribed acts while confined in a penal institution. Excludes from the definition of "penal institution" for this purpose a facility of the Department of Juvenile Justice or a juvenile detention facility. Amends the Sex Offender Registration Act. Includes in the definition of "sex offense", a second violation or attempted violation of public indecency while confined in a penal institution committed on or after the effective date of the amendatory Act.