United States v. Aguilar
645 F.3d 319
5th Cir.2011Background
- Aguilar, an ambulance driver/EMT for Guardian EMS, was transporting a patient when a drug dog alerted at the Sarita checkpoint.
- A locked ambulance compartment concealed 388 pounds of marijuana; Aguilar and Diaz-Alonso were arrested.
- Aguilar allegedly confessed to agents Vincent and Minnick, claiming Pena instructed him to transport drugs and to switch ambulances later.
- The government presented circumstantial evidence suggesting the trip was a sham to pass drugs through checkpoints, including equipment anomalies and form discrepancies.
- Aguilar testified he did not confess and disputed the agents’ version of the interrogation; the interview was not recorded.
- The district court did not issue a specific curative instruction after the prosecutor’s improper comments, and Aguilar was convicted of conspiracy to possess with intent to distribute over 100 kilograms of marijuana and possession with intent to distribute over 100 kilograms of marijuana.
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Whether the prosecutor’s closing argument improperly bolstered credibility. | Aguilar argues the government’s rebuttal improperly vouched for agents. | Aguilar contends the remarks urged the jury to credit the agents because they were government workers. | Yes; improper bolstering justifies reversal. |
| Whether the direct examination of agents improperly bolstered testimony. | Aguilar claims the examination suggested agents had no motive to lie. | Aguilar asserts questioning indirectly endorsed agents’ credibility. | No; direct examination was permissible to counter defense claims. |
| Whether the trial court’s handling of the misconduct constitutes plain error affecting substantial rights. | Aguilar argues the error affected the verdict’s fairness. | The government argues any error was harmless given other evidence. | Yes; error was plain, prejudicial, and affected substantial rights, requiring vacatur and remand. |
Key Cases Cited
- United States v. McCann, 613 F.3d 486 (5th Cir. 2010) (prosecutor’s emotional bolstering of credibility improper; rebuttal allowed within limits)
- United States v. Gracia, 522 F.3d 597 (5th Cir. 2008) (reversible plain error for improper bolstering when credibility is central)
- United States v. Ramirez-Velasquez, 322 F.3d 868 (5th Cir. 2003) (factors for plain error analysis; credibility-focused rulings)