"We'll be working with the schools to see if we have any more of this activity," Busby said.
The candy resembled hard-shelled tablet candies such as Smarties or Sweet Tarts.
School officials told CBS 13 the candy tested positive for methamphetamine and informed parents of the incident in a letter.
"It was scary to see that these drugs are masked as candy and could be passed off to any student as such," the principal and vice principal wrote in a statement. "It is worrisome that it can come in the forms of very popular types of snacks that we see sold daily. Even the packaging can be similar."