In the previous chapter we discussed the main, all encompassing and thorough model of evaluating cold cases but mentioned that we had learned from our lectures to police detectives that the model may be too labor intensive for most departments to employ. That in turn caused us to reevaluate it and design not one but two additional models that we believe will be more suitable to the needs of the majority of police agencies in the United States. Additionally, we were motivated by the requirements found in the announcements of the National Institute of Justice (NIJ) Cold Case DNA grants where they specifically require that only those cases where potential DNA material exist will be processed under the guidelines of the grant.