LAPD October 2011 crime audit
This LAPD audit, published in October 2011, looked at cases of rape, robbery, aggravated assault and simple assault and found one case out of 106 that was misclassified in a one-month period in May 2011. That case should have been classified as a simple assault, but was “overreported” as an aggravated assault. It is unclear how many cases of each crime type were sampled, so it is difficult to draw conclusions from the audit’s results.
Sources: Los Angeles Police Department