Police have not said where they believe the small bag of meth was handed out, but right now they believe it was somewhere in Keshena.
Officers have not determined whether it was accidental or intentional.
"Nowadays, nothing is off the table," said Ben Warrington from the Menominee Indian Tribe. "Keep an eye on your kids, keep an eye on the candy, don't just drop them off in the car and let them run up to the house get out with them. Stay involved, and after everything is done check that candy."
Detectives are asking parents of all children who went trick-or-treating in the area last night to throw all of the candy away and the bags because there could traces of meth on them.
They have two drop-off sites where parents can bring the bags that are possibly contaminated: Keshena Veterans Park and Neopit Fire Station. Parents can drop off candy Tuesday from 8 a.m.-5 p.m.
There will also be a make-up event for children to trick-or-treat Tuesday, October 31 from 5-7 p.m. at the College of Menominee Nation campus, hosted by several Menominee agencies.