By Matt Dinger, Staff WriterA powerful anesthetic that often causes dark and violent hallucinations is not terribly common, but police expect to see more of it during the warmer months. PCP, or phencyclidine, initially was sold as an anesthetic, but no longer has accepted medical value, said Oklahoma Bureau of Narcotics and Dangerous Drugs Control spokesman Mark Woodward. “It’s never gone away.Read more on NewsOK.com