After a jury trial, Defendant Samuel Maldonado was convicted of conspiracy with intent to distribute 500 or more grams of cocaine, 21 U.S.C. § 846, and possession of cocaine with intent to distribute, 21 U.S.C. § 841(a)(1).
First, Maldonado argues that there was insufficient evidence to support his conspiracy conviction. Whether sufficient evidence existed to support a conviction is reviewed de novo. United States v. Harvey,
“When a defendant challenges the sufficiency of the evidence'in a conspiracy case, deference to the jury’s findings is especially important because a conspiracy by its very nature is a secretive operation, and it is a rare case where all aspects of a conspiracy can be laid bare in court with the precision of a surgeon’s scalpel.” United States v. Santos,
Here, viewing the evidence in the light most favorable to the government, we conclude the evidence was sufficient to support the conviction. Maldonado’s own statements to law enforcement officers show that he was systematically buying 31 grams of cocaine every four days for about four months. He admitted that he was purchasing the cocaine from a Dominican seller and then reselling the drugs. Law enforcement officers found baking soda and 54.8 grams of cocaine in Maldonado’s kitchen refrigerator. Elsewhere in his apartment, officers located other drug trafficking tools, such as scales and glassine bags. The quantity of cocaine involved was such that the jury could reasonably infer that both Maldonado and his supplier knowingly joined in a conspiracy the object of which was to sell to Maldonado’s customers. Given the evidence presented to the jury, the argument that the evidence was insufficient to show that the Dominican seller conspired with Maldonado is not persuasive.
Second, Maldonado argues that he was entitled to a buyer-seller exception jury instruction because evidence presented at trial could have supported the jury’s finding of a buyer-seller, as opposed to a conspiratorial, relationship. A district court’s decision to refuse a jury instruction that was requested by one of the parties is reviewed de novo. United States v. Desinor,
“It is well-established that a criminal defendant is entitled to a jury instruction
Third, Maldonado argues that the district court abandoned its gatekeeper function related to expert testimony by failing to perform an on-the-record analysis of whether Morales was qualified as an expert. “We review the district court’s decision to admit or exclude expert testimony for an abuse of discretion.” United States v. Cruz,
In this case, it was not manifest error for the district court to fail to conduct a Daubert analysis on the record. Given the routine nature of law enforcement officers testifying as experts to educate the jury about the drug trade, it was not an abuse of discretion to refrain from an on-the-record Daubert analysis, and the district court acted within its discretion when allowing Morales to testify.
Fourth, Maldonado contends that Morales’s testimony was improper. Morales opined that the cocaine and drug paraphernalia found in Maldonado’s apartment were consistent with drug distribution rather than personal use. The parties agree that this argument is evaluated under plain error review. “To establish plain error, the defendant must establish (1) error (2) that is plain and (3) affects substantial rights.” United States v. Villafuerte,
Admission of Morales’s testimony was not in error. “This court has repeatedly found that the operations of narcotics dealers are a proper subject for expert testimony.” United States v. Lopez,
Fifth, Maldonado submits that the district court erred when it found that he is a career criminal. We review de novo a district court’s interpretation of the Sentencing Guidelines, and its factual findings are reviewed for clear error. United States v. Mason,
Here, Maldonado concedes that his New York conviction for criminal sale of a controlled substance in the second degree is a predicate offense, but he argues that the record does not show that he was in custody within 15 years of the commencement of the present offense, as required by the Guidelines. Reading the Presentence Report’s description of this state conviction in concert with a prior federal conviction reveals that Maldonado was released from federal custody, reentered state custody on November 8, 2001, for a parole violation on the criminal sale of a controlled substance offense, and was then released on January 24, 2002. The district court’s factual finding on this point was not clear error because it is plausible in light of the entire record. Anderson v. City of Bessemer City, N.C.,
For the reasons stated above, the judgment and sentence of the district court are AFFIRMED.
Notes
. The jury returned a not guilty verdict for the third charge of possession of a firearm by a felon under 18 U.S.C. § 922(g).
