Scheming cops, greedy cops, rogue cops ripping off dealers, and, of course, yet another jail guard falls prey to temptation. Let's get to it:

In Zanesville, Ohio, two Zanesville police officers and a Zanesville hospital police officer were arrested Monday for allegedly extorting one drug dealer and plotting to rip off another one. Officer Sean Beck, 28, the alleged ringleader, Officer Trevor Fusner, 30, and hospital police officer Chad Mills, 29, all face federal charges of conspiracy to distribute cocaine. Beck had extorted $7,300 from one drug dealer in exchange for his help ripping off another one and enlisted the other two to help him out. But that rip-off never occurred because Beck got greedy, hit his extorted drug dealer for another $1,000, and the dealer then snitched him out.

In Detroit, a Detroit police officer was indicted last week for stealing six kilograms of cocaine from a department evidence room. Officer Vincent Crockett, 39, is charged with possessing cocaine with intent to distribute and stealing government property. The cocaine went missing in March, and Detroit narcotics officers eventually enlisted the FBI in the investigation. If convicted, Crockett could face up to life in prison and a $4 million fine.

In Chicago, a former Chicago police officer was sentenced Tuesday to six years in prison for shaking down drug dealers with other corrupt officers. Former officer Erik Johnson faced up to 11 years, but got a break at sentencing because he helped investigate the leaders of the rogue cops, then-Officers Broderick Jones and Corey Flagg. His testimony also helped to convict Eural Black, Johnson's former partner and the only officer among the five charged to go to trial. The others have all pleaded guilty and await sentencing.

In Largo, Florida, a jail guard was arrested Tuesday on charges he sold drugs to inmates. Kevin Rix, 24, who has been a corrections officer since 2005, worked at the Largo Road Prison, where a three-month undercover investigation found that Rix provided drugs to inmates in exchange for cash, according to the Florida Department of Law Enforcement. He is charged with unlawful compensation, introducing contraband into a prison system, and trafficking in cocaine. He was last reported to be on the other side of the bars at the Pinellas County Jail.