You just received a case but there are way too many samples to process for DNA results. How do you determine which samples will provide the best DNA results? You could select the evidence to process based on information you read in the case file, but you cannot be sure the best evidence has been selected and you may need to go back to test additional samples to obtain the results you need.
Now imagine that you could take a sample from each of your selected samples and determine in 75 minutes if they have sufficient DNA to generate a full DNA profile.