When T.I. and wife Tameka "Tiny" Cottle were arrested in Los Angeles earlier this month, police originally charged them with possession of a controlled substance — a substance that was later revealed to be Ecstasy. But according to new documents, that might not have been the only drug in their possession. The charges could send T.I. back to prison.

According to documents obtained by E! Online late Thursday, T.I.'s probation officer reported that L.A. County Sherriff's deputies also found codeine and marijuana in his possession during the arrest. In the initial report filed after the couple's September 1 arrest, deputies said they pulled over their Maybach and then "smelled a strong odor of marijuana emitting from the vehicle."

The documents were filed as part of a summons issued on Thursday by U.S. District Judge Charles Pannel Jr., requiring T.I. to appear before the court to explain why his probation should not be revoked after the L.A. incident, the the Atlanta Journal-Constitution reported. The judge's order lists three possible violations of his probation: possession of Ecstasy, testing positive for opiates and associating with a convicted felon.

"We are very disappointed in Mr. Harris' recent conduct," United States Attorney Sally Quillian Yates said in an e-mail to MTV News on Friday (September 17). "We will make our sentencing recommendation at the revocation hearing."

After T.I.'s arrest, TMZ posted photos of the Maybach that showed several Styrofoam cups in the cup holders. The Web site alleged that the cups contained sizzurp — a.k.a. codeine syrup.

MTV News' phone calls and an e-mail sent to a spokesperson for the Georgia Department of Corrections — which handles probation supervision — were not responded to by press time. A message left for T.I. lawyer Don Samuel was also not returned, though in the days following the rapper's arrest, Samuel told the Atlanta Journal Constitution that he was uncertain how the arrest would affect his client's probation, saying "without knowing all the facts, it's premature to speculate what the court is likely to do."

The summons does not set a date for T.I. to appear before the court.