"They have told us they treat investigations of this type as confidential, and we will follow their ground rules," Straub said.
She provided no further details. A spokesperson for the Department of Justice did not respond to a request for comment.
Chris Bartley, president of the Lexington Professional Firefighters Local 526, said he was unaware of the justice department's investigation until he received a reporter's phone call on Monday.
Diversity in the ranks of Lexington's firefighters has been a topic of public concern for several years.
Only five black men and four white women are among the 119 graduates of the fire recruit academy over the previous six years.
The Lexington Herald-Leader reported in March 2011 that the most recent class of firefighter recruits, who graduated in February 2011, consisted of 25 white males despite a much-publicized campaign to recruit more minorities and women.
Of the division's 525 sworn firefighters at the time, 31 were black and 12 were white women. There were no black female firefighters.
Since then, the number of sworn firefighters has dropped to 482. Of that number, 23 are black males, including Interim Fire Chief Keith Jackson. Another 12 firefighters are white females, one is American Indian, one is Pacific Islander and one is Hispanic, said Assistant Chief Ed Davis.
A new class of 26 firefighters begins 18 weeks of training on Tuesday. That class includes one black female and one black male. The remainder are white males, Davis said.
The Lexington Division of Fire and Emergency Services acknowledged in April 2010 that its work force was not as diverse as it should be. At the time, fire officials said they had stepped up minority recruiting with advertisements showing black and female firefighters on the department's Web site and by increasing their presence at career fairs and local events.
Jackson, a 20-year veteran of the fire department, was named interim chief on March 9, 2011, after Mayor Jim Gray asked former Fire Chief Robert Hendricks to resign.
Gray had expressed concerns about Hendricks' failure to manage the division's budget -- in particular, significant overtime expenditures for firefighters -- and division morale and a lack of leadership.
In January, Gray announced that the city planned to hire 25 firefighters to help fill vacant positions created after about 40 firefighters retired in 2011.
"This class also has some ethnic diversity," Davis said of the new recruits. "It's not all Kentucky white boys, but has people who hale from other parts of the country."
Bartley said the union supports "as much diversity as possible in hiring practices, but we have nothing to do with the hiring practices of the city."
Gray has allocated money for two more fire recruit classes in his proposed budget for fiscal year 2013, which begins July 1. That proposal has not yet been reviewed or approved by the Urban County Council.
Written by Lexington Herald-Leader