They get the results right after the next Depends commercial. In about 6 months a note would appear in your in-box with the result. There was a box in the elevator lobby where you put the evidence collection tube with the case number and the processing you required.

Have you ever watched any of the CSI series? Every time they have a case, one of the main characters will walk into the sparkling and pristine glass enclosed laboratory cubical of a minor character, hand them an evidence collection tube and say, “we need this right away.” If you had ever walked into my agency’s lab, you wouldn’t find a glass enclosed cubical.