An undercover FBI agent investigating weapon smuggling in the Philippines spent taxpayer dollars to pay for prostitutes for the suspects and himself at a club later raided for hiring underage girls, a defense attorney has alleged in court filings.

Federal prosecutors acknowledged in court filings that the government reimbursed the agent for $14,500 for entertainment, cocktails and tips over a period of less than a year in 2010 and 2011 in connection with the case. The expenses included $1,600 on a night out in September 2011 at a club known as Area 51 in Manila.

In May, Filipino authorities targeted Area 51 on suspicion of employing minor sex workers and discovered 19 underage girls at the club. In a press release, the Philippines National Bureau of Investigation said minors danced in the nude and offered "sex services" for a fee.

A public defender representing the lead defendant in the weapon-smuggling case last week filed a motion asking a judge to dismiss the case based on "outrageous government misconduct," citing the agent's actions.
I get the moral outrage, etc. but what about the validity of the the charges?

According to the indictment, the men accepted nearly $90,000 for weapons and explosives that were eventually shipped to Long Beach labeled as "Used Personal Effects." Revereza is accused of having received $8,400 in bribes to facilitate the shipment through customs.
FBI agent spent taxpayer funds on prostitutes, lawyer alleges - latimes.com