The children visited Hammond in recent weeks. That's when police say the sexual assaults happened.
Hammond was convicted in 2007 on Maryland charges for a third-degree sex offense.
He's being held at Sussex Correctional Institute in Georgetown.
Delaware man charged with raping 3 kids
DELMAR, Del. (AP) - February 29, 2008
Police say Michael Hammond is charged with rape and other sex
offenses for assaulting three children between the ages of three
and 10.
