Each month, the lab I work in is forced to reject several requests for digital analysis due to inability to get past the encryption. In most cases, these investigations involve rape, child pornography and sexual assault. In each of these cases, a legal search authority (verified by a judge), has been provided to examine the phone. In each rejected case involving an encrypted phone, the investigation usually ends due to insufficient evidence. That means each time, a federal agent or police officer has to go to the victim and tell them "I'm sorry. We understand something terrible happened to you, but the suspect didn't provide the passcode to their phone, and we have no further evidence. There's nothing more we can do to help you." When that happens, trust in the legal system erodes. I can't imagine being a victim (or the parent of a victim) of an awful crime, and having the police respond with "There's nothing more we can do."