Julio Ledezma had been chief of police in La Junta, a town of 8,700 in northern Mexico, for barely three months when a pair of strangers paid him a visit.
They said an aide to the mayor had sent them, and they bore gifts: a briefcase stuffed with cash and a truck for Ledezma's personal use.
In return, the new chief was to distract federal police at security checkpoints with fake calls for assistance. The diversion would allow drug traffickers to drive through the area without inspection.
Ledezma could refuse -- and be killed.
He could take the bribe -- and be owned by the Juarez cartel.
He chose to stall. He told the men he had to talk to his boss first. He approached civic leaders, trying to rally support. Word got back to the traffickers, and on Ledezma's 45th birthday, six men with military rifles surrounded his home while he was out buying steaks and jalapeños for his birthday dinner.
The gunmen told his wife that they would find him and kill him, no matter where he went in Mexico. They waited about 20 minutes, then left.
When Ledezma returned, he realized that resistance was not an option. He drove to Juarez with his wife and their 15-year-old daughter and crossed the Bridge of the Americas into El Paso. There, they asked for political asylum.
Their request will probably be rejected, because asylum is reserved for people fleeing political oppression or ethnic discrimination. Police officers who stood up to drug cartels don't necessarily qualify.
Indeed, the U.S. government is aggressively fighting Ledezma's petition on the grounds that the threat that caused him to flee is inherent to police work, according to his lawyer, Eduardo Beckett. U.S. immigration officials said they could not comment because asylum cases are confidential.
As drug violence has worsened in Mexico, businesspeople, journalists and other professionals have been seeking refuge in the U.S. But few have as much at stake as law enforcement figures who defy the cartels.
No statistics are available on how many police officers have sought asylum in this country, but government sources and immigration attorneys suggest the number is increasing.
That is no surprise, because Mexican police have been "left out in the cold by the very institution they sought to protect," said Bruce J. Einhorn, a retired immigration judge in Los Angeles who directs an asylum clinic at Pepperdine University School of Law.