ST. JOSEPH, Mo. -- Dark front porches this Halloween could mean more than a candy shortage.
And as for the packs of people dressed in police uniforms knocking on those doors -- they're not trick-or-treaters.
A new state law requires registered sex offenders to turn off their lights after 5 p.m. Oct. 31 and to post signs that read "No candy or treats at this residence."
Lights inside their residences should be on, though, as the offenders must stay at home between 5 p.m. and 10:30 p.m. "unless required to be elsewhere for just cause."