For much of this year, the Obama administration touted its tougher-than-ever approach to immigration enforcement, culminating in a record number of deportations.

But in reaching 392,862 deportations, U.S. Immigration and Customs Enforcement included more than 19,000 immigrants who had exited the previous fiscal year, according to agency statistics. ICE also ran a Mexican repatriation program five weeks longer than ever before, allowing the agency to count at least 6,500 exits that, without the program, would normally have been tallied by the U.S. Border Patrol.

When ICE officials realized in the final weeks of the fiscal year, which ended Sept. 30, that the agency still was in jeopardy of falling short of last year's mark, it scrambled to reach the goal. Officials quietly directed immigration officers to bypass backlogged immigration courts and time-consuming deportation hearings whenever possible, internal e-mails and interviews show.

Instead, officials told immigration officers to encourage eligible foreign nationals to accept a quick pass to their countries without a negative mark on their immigration record, ICE employees said.

The option, known as voluntary return, may have allowed hundreds of immigrants - who typically would have gone before an immigration judge to contest deportation for offenses such as drunken driving, domestic violence and misdemeanor assault - to leave the country. A voluntary return doesn't bar a foreigner from applying for legal residence or traveling to the United States in the future.

Once the agency closed the books for fiscal 2010 and the record was broken, agents say they were told to stop widely offering the voluntary return option and revert to business as usual.

Without these efforts and the more than 25,000 deportations that came with them, the agency would not have topped last year's record level of 389,834, current and former ICE employees and officials said.

The Obama administration was intent on doing so even as it came under attack by some Republicans for not being tough enough on immigration enforcement and by some Democrats for failing to deliver on promises of comprehensive immigration reform.

"It's not unusual for any administration to get the numbers they need by reaching into their bag of tricks to boost figures," said Neil Clark, who retired as the Seattle field office director in late June, adding that in the 12 years he spent in management he saw the Bush and Clinton administrations do similar things.

But at a news conference Oct. 6, ICE Director John T. Morton said that no unusual practices were used to break the previous year's mark.

"When the secretary tells you that the numbers are at an all-time high, that's straight, on the merits, no cooking of the books," Morton said, referring to his boss, Department of Homeland Security Secretary Janet Napolitano. "It's what happened."

ICE declined to make any officials available for interviews. In selected responses to e-mailed questions, spokesman Brian P. Hale wrote that the agency did nothing different from previous years but did not deny that ICE had focused on voluntary returns when it faced a shortfall weeks before the fiscal year ended. Rather, field offices were reminded of the voluntary return option, he said.