Obvious additions would be types of drug thought to be contained therein, tests requested, locations for the person transporting it to and from the Crime Lab to initial with date and time, and a place to attach the test results. Providing a standardized format for marking the envelope decreases the chance that information will be accidentally omitted, and increases the overall professionalism of the presentation when the evidence is introduced into court as an exhibit. Whether envelopes are stored in file cabinets, trays, boxes, bins, or some other type of container, the dimensions need to be based on the envelope. Then the dimensions of the shelving need to be based on the container selected. Each container must be directly accessible, and each of its contents must be easily identifiable.
Big boxes stacked on each other are just too awkward, inefficient, and dangerous for continued use.
Narcotics which have been signed off for destruction are much more susceptible to theft, especially by substitution, under the assumption that they will not ever be tested or requested again for court. Narcotics must be maintained in the security of the narcotics room until their actual destruction, but those that have been signed off for destruction should be immediately isolated in a specially secured area or container in the property room. Leaving them freely accessible to all of the people in the unit is totally unacceptable, and is practically inviting abuse.