A bait station is not the same as a mouse or rat trap; rather, it is a clever device that harbors a bait block. The bait block contains a poison and the station is designed to resist tampering from pets and/or children, check the product packaging to determine what type of station it is. The rodent, seeking out food, locates the bait station, crawls inside and nibbles the bait. Then it crawls back out and likely heads to its nest to die within a day or two. All Tomcat bait stations are EPA approved for either use indoors or outdoors, and are specifically designed to prevent tampering by kids or pets from accessing the secure bait depending on the type.