With Halloween fast-approaching, Denver Police posted an unusual PSA on their official Facebook page, warning parents that they need to be on the lookout for pot-tainted candy while their children are trick-or-treating.

Unfortunately, marijuana-infused candy can often look identical to normal candy such as gummy bears or lollipops, Erika Katz explained on Fox and Friends Weekend this morning.

Katz added that unknowingly eating a large quantity of pot-tainted candy could make someone very sick and could even be lethal.

Katz recommends parents give their children a smaller container for house-to-house trick-or-treating, and then dump that into a bigger bag that is kept by an adult. That way, parents have more control over what candy is being eaten and when.

“You just don’t want them eating loose candy or going into someone’s home, sticking their hand in a bowl, especially a place like Colorado,” Katz said.

Katz also shared some other safety tips for parents on Halloween: have children wait to eat candy at home, inspect treat bags and throw away homemade treats, candies in twist wrappers and goodies that look open.

Watch the clip above.

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