A group of 14 serving and previous law-enforcement officers are among 20 defendants taken into custody in Mississippi and Tennessee for accepting bribes from narcotics dealers in exchange for police protection, in what authorities described as "a monumental betrayal of the community's confidence".
These apprehensions come after a years-long investigation by national law enforcement who posed as drug sellers. Among those charged were county sheriffs from Mississippi.
Federal officials initiated the undercover operation after receiving reports from real narcotics criminals about being forced to provide bribes to police members.
This corruption scheme allegedly extended beyond the Delta area of Mississippi into Memphis, Tennessee, and Miami, Florida.
"The original complaints that began the investigation were from narcotics traffickers," a federal prosecutor announced during a press briefing on Thursday.
Some of the officers had accepted bribes between $20,000 (£15,000) and $37,000, the legal official noted.
This operation utilized covert national officers acting as narcotics sellers with fake narcotics, which the accused individuals allegedly believed to be 25 kilograms (55 pounds) of cocaine.
"They sold out the public," declared a high-ranking federal agent. "They betrayed the confidence that the people placed in them, disgraced the badge and weakened the hard work of good law enforcement officers across this state and region."
The arrests take place as American authorities have begun air strikes in South America against alleged drug traffickers.