SDCL 22-24B-1 identifies the pertinent sex crimes, and those convicted must register as a sex offender.
The crimes include:
Felony Sexual Contact with a Minor (22-22-7),
Sexual Contact with a Person Incapable of Consenting (22-22-7.2),
Possessing, Manufacturing, or Distributing Child Pornography (22-24A-3),
Sale of Child Pornography (22-42A-1),
Sexual Exploitation of a Minor (22-22-24.3),
Kidnapping, if the victim is a minor (22-19-1),
Promotion of Prostitution of a Minor (22-23-2(2)),
Criminal Pedophilia (22-22-30.1),
Felony Indecent Exposure (22-24-1),
Felony Indecent Exposure (22-24-1.3)
Indecent Exposure (22-24-1.2),
Solicitation of a Minor (22-24A.5),
Also included are:
any attempts to commit the above crimes,
any crime committed in a place other than SD which would constitute a sex crime in SD,
any federal crime or court martial that would constitute a sex crime in this state,
any crime committed in another state if that state also requires that anyone convicted of that crime register as a sex offender in that state.
Also included would be any sex acts with a minor committed by 1) a jail employee (when the victim is a detainee) (22-22-7.6), or
a psychotherapist (22-22-8) & (22-22-29).
If any of these apply, he should contact his County Sheriff's Department.