Homicide evidence is placed in what are called DNA or blood barrells, and stored at the Property Clerk Warehouse. The warehouses look like that final shot of Raiders of the Lost Ark, when they are putting away the Ark of the Covenant, amongst endless stacks of wooden crates. Here, there are fifty foot tall towers of cardboard DOA barrels. Each barrel holds 20 to 25 envelopes of evidence. There are roughly five or six thousand barrels. At 25 envelops per barrel, that could represent up to 150,000 crimes.