Well, and to generate fake evidence to lead cops off the trail for the longest period of time possible. Evidence could be said to contain a half life. The longe

Well, and to generate fake evidence to lead cops off the trail for the longest period of time possible. Evidence could be said to contain a half life. The longer (real) evidence is not gathered the more it can decay in one way or another. For example security footage gets overwritten. Actual witness memory gets foggy. Physical items get thrown away. If the cops spend the first month going after some poor Mark that had nothing to do with it, by the time they realize they've been had it will likely be much more difficult to catch the actual perp. Also, that's saying nothing about the court of public opinion.