I have a friend who is sight impaired. I recently programmed his scanner for a visit in the LA area. When he came back he advised me that LA Sheriff and LAPD are encrypted. He complained about the beeps and only hearing the dispatcher. I remember the beeps being a marker tone on the sheriff channels something the sheriff department has done forever so I assume that is what he was talking about. He said he never heard LAPD at all which made him think they are 100% encrypted. So I am just asking in this forum, are either agencies the sheriff or LAPD encrypted reference dispatch?