And to give your interesting data more context, DPD was investigated and I believe found to be running prostitutes out of the police department in the mid 1990s. I would think IF I were running a department found to have been doing this in the 1990s, I would be highly skeptical that we had zero arrests in the latest reporting period.
Durham County had 4 prossie arrests in 2002, zero in 2003. There were 2 Sex offenses arrests in 02, 5 in 03.
None of these arrests were by the Durham PD.