A perpetrator of sexual assault is very unlikely to be someone who is a stranger to you and your family. Most sexual crimes are committed by someone who has access to you or your children.
1U.S. Department of Justice. 2005 National Crime Victimization Study. 2005.
2U.S. Department of Justice. "National Estimates of Missing Children: An Overview" in National Incidence Studies of Missing, Abducted, Runaway, and Thrown away Children. 2005.
No, Maryland does not have any residency restrictions. Information put out by other states has shown that residency restrictions do not help to prevent sexual offenses from occurring because the victims and the offenders, in most situations, know each other. Having ready access to victims, in private and secretive environments, is how sex offenders thrive.
Some states, such as Iowa and Florida, have found that residency restrictions can make it very difficult to track sex offenders who have become homeless. Homeless sex offenders are also more difficult to register and without an address the registry is unable to tell the public where the offender lives. Homeless sex offenders are better able to operate in private and secretive environments. By registering a sex offender with a valid address the police, the Sex Offender Registry and the community are all better able to make sure that offender is not able to re-offend.