Crime Cast

Crime-Cast is a complete plaster casting mixture in a bag. This
convenient, easy-to-use pouch contains everything necessary including
water to make a plaster cast of an average-size shoe print. A small
water bladder is enclosed in each Crime-Cast pouch. There’s no need to
carry around water, mixing bowls and measuring cups. Simply break the
internal water “bladder,” mix in the bag and pour. When dry,
Crime-Cast creates a hard, white casting.