All but two of Gaston County's 70 registered sex offenders on probation attended a counseling program on Halloween night.
Officials say one of the offenders was in an emergency room, while the other wasn't expected to attend because he had warrants for another issue.
County officials had required that the offenders attend the program, which was designed to educate them about new laws and to keep them off the streets during Halloween.
The three-hour program also provided counseling. The new law taking effect December First will require registered sex offenders to register in-person at their sheriff's office every six months. The current law requires them to register every year by mail.