"A book detailing the setting of various traps. This could be dangerous in the wrong hands."
"Traps" is a special item that can be found in the "end of the road" scenario of Resident Evil Outbreak File #2. It is known as the "Trap Encyclopedia" (「トラップ大全」 'Torappu taizen' ) in the Japanese version.
It is found at Rooftop ~ elevated railway by anyone in any difficulty, except NORMAL.