Summary: The final part of the first installment from Seattle PD, this one focusing on people who searched the home to find a lot of underage pornographic material being amassed
Fact #1: over time slop gets worse (training set is like some blurry JPEG). Fact #2: People's "smell" for slop improves over time, as they 'train' on slop and can detect it based on prior encounters. Put 1 and 2 together.