This skill governs the characters ability to detect hidden things. This skill is similar to the search skill accept, that the Spot Hidden skill to use when not actively search for and thing in particular. The attempt to use this skill should be rolled by the GM. That way only the GM will truly know it something was missed. This skill can be used at any time as long as the character is not or has not actively searched the area.
Example: Mark was walking down the street when something catches his eye. With caution he approaches what he thinks is a shine object lying in a bunch of rubble. Once he gets closer he realizes that its a barrel of a gun someone has hidden in the rubble.