WHY NOT BOTH??? Use what works and throw out what doesn't.
Richard Cummings, looking out the front, plate-glass window of the Torco County Sheriff's Department, watched as pink-golden dusk settled over his town. Checking his watch, he noted it was just a little past six. Giving his chair a lazy spin, Cummings welcomed another calm, peaceful night as he settled in over his paperwork. Just the way he liked it. As a man pushing sixty, he didn't want to worry about anything other than his cholesterol or what to give his granddaughter May when she came to visit. As he sat mulling over his daily logbook, he decided he really had it pretty good considering everything that had gone on in his past. A past that bit hard and left you cold and wanting. In fact, Cummings didn't think about vampires very much at all anymore. Until, of course, one walked in to the Torco County Sheriff's Department ten minutes later and ________________. Love this. Good luck!
P.S. - County is usually Sheriff, City is usually police? Yes/No?