Scents are currently very hard to keep track of as they cant be named meaning you must have a photographic memory if your investigating anything more then a handful. Some people have suggested having the ability to name a scent just as we do a key, but this has the draw back of slowing us down and still allows the multiple scent copies taken from the same crime to not match which severely hampers two groups trying to work together.
I propose that every crime be given a randomly generated name at creation which serves to organize things for us. The name would be a series of words which would create an otherwise meaningless meaningless phrase vaguely resembling the tile of a Sherlock Holmes story such as "The Case of the Missing Flying Yellow Leopards of Sodom". Their would be a series of rules that encode certain information in the name, the first is the type of crime, "The Case of the missing/stolen/burgled/purloined/etc" would precede a theft and "The Case of the Slaying/Murder/Slaughter/etc" preceding a Murder and so on for each type of crime. Next would come a series of words randomly picked from tables perhaps fitting the form of Adjudicative-Adjudicative-Noun. Then a label of a place or victim, so for example a crime on village property gets the "of VillageName" ending, a Murder is identified by it's victims name and crimes on Claims could get a name that people enter onto their claims for this purpose.
Finally a number is put at the end to group related crimes into a 'crime spree', a spree is defined as all the crimes committed by a single person of the same type committed during one continuous period on a claim. So an initial trespass get named "The Trespassing of the Hallowed Fat Moon of Bob's Place #1" and the following 3 peeks into crates get #2 through #4, if the trespasser leaves the claim even for a moment a new name is rolled.