The investigation - based on a complaint by Brown - will be conducted by Detective Rick Childress, Lt. Tony Fox said Monday.

Brown did not return calls to his office and cell phone on Monday.

Martinez acknowledged taking Brown's personnel file to his home, but said he was within his rights because Ogden managers frequently take work home.

Martinez was fired in December, the same week that city attorney Gary Williams retrieved Brown's file from Martinez's home in Roy.

City officials said Martinez was fired for taking city property - Brown's file - and for dishonesty, but Martinez claimed he was fired because he was about to blow the whistle on Mayor Matthew Godfrey's tolerance of alleged misbehavior by Brown.

Martinez previously told The Salt Lake Tribune that he had learned in his two years at the city that pornography allegedly had been found on Brown's computer and that Brown had been accused several times over the years of sexually harassing female employees and verbally abusing subordinates.

Rather than discipline or fire Brown, Martinez said, Ogden administrators rewarded him.

City officials, including Williams, have refused to discuss the allegations because they involve personnel matters.

Three former Brown subordinates contacted by the Tribune in January substantiated Martinez's allegations about Brown's behavior toward them.

Martinez, who is black, said that before he was fired, he intended to share his allegations about Brown with an outside attorney investigating his prior claim of pay discrimination against women and minority managers in the city.

Now, all of the allegations are part of Martinez's complaint pending before the Utah Labor Commission's Anti-discrimination Division.

Brown's complaint with the Ogden police came just days after he lashed out at the City Council during a March 6 public session, accusing several members of unethical conduct.

He told the Standard-Examiner newspaper that he believes Martinez stole his file at the request of Council Chairman Jesse Garcia, who allegedly wanted to discredit the Godfrey administration.

In the March 6 council meeting, Brown accused Garcia of illegally promising him a top administrative job in exchange for Brown's support in an upcoming mayoral campaign to unseat Godfrey.

Neither Godfrey, who defeated Garcia in 2003, nor Garcia has said whether he will run for mayor.

Garcia, who is in Washington, D.C., said Monday that he did not promise Brown a job.

It's "interesting," Garcia said, that Brown accuses him of wanting "dirt" from Brown's personnel file while at the same time contending that Garcia offered him a job.