There is a children's party at the Village Green Pavillion in Indianhead from 5-8PM on the 31st and I think trick or treating through the neighborhoods runs from sunset until 8PM on the 31st. Also as a public service the Sheriff's Office will x-ray the candy on Monday between 2 and 4 at the Court House. Here is the Sheriff's Press Release http://ccso.us/press/p102204.htm