The St. Johns County Sheriff’s Office said an audio recording revealed a plot between twin sisters to smuggle crack cocaine and a crack pipe into jail after their arrest.

Stacy and Stephanie Heichman, 31, were arrested after police investigated a theft at Target and found a wallet belonging to the one of the twins left behind in a shopping cart.

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When a deputy reviewed an audio recording from the patrol car where the two sisters were placed after their arrest, he said he heard Stacy tell Stephanie she had a crack pipe in her private parts.

"These individuals have a great deal of ingenuity and again like in this case they're willing to go to certain extremes in order to smuggle the contraband in,”  Sheriff's Cmdr. Chuck Mulligan said.

>> Photos: The twins' mug shots over the years

The deputy's report said the audio recording also revealed the two discussing crack-smoking during their booking and then talking about hiding a crack pipe in the patrol car.

Authorties said  a deputy later found a pipe stuffed between seat cushions. Another one was found hidden in a body cavity of Stacy Heichman.

"We've seen individuals smuggle firearms and things like that -- in other cases, not necessarily in the jail, but certainly individuals will secure items like that in body crevices and cavities,” Mulligan said. “We've seen that occur for years."

Stacy Heichman was charged with smuggling contraband into prison.

Both sisters face drug and larceny charges.