The Miami-Dade state attorney's office has concluded its investigation into the two felony counts of aggravated assault and one misdemeanor count of simple battery against Washington Redskins safety Sean Taylor and is expected to make a decision on whether to file charges this morning.

State prosecutor Mike Grieco, who oversaw the pre-filing conference, will announce the state attorney's decision at the Richard E. Gerstein Justice Building in Miami.

At an arraignment yesterday, Grieco filed one charge of aggravated assault with a deadly weapon -- a bat -- against Taylor's co-defendant, Charles Elwood Caughman, 19, of Baltimore. Police have said that on June 1, Taylor drove his sports utility vehicle, with Caughman inside, and with several other friends trailing in another car, into a Miami neighborhood to settle a dispute over the NFL player's two stolen all-terrain vehicles.

According to police reports, Taylor got out of the car and pointed a gun at two people and demanded the return of his ATVs. No shots were fired but Taylor returned shortly thereafter with more friends, police said. The second time, Taylor hit one person with his fist during a scuffle, the report said, while Caughman chased the second victim with a bat.

On Wednesday, Taylor -- accompanied by defense lawyer Edward Carhart -- gave a voluntary statement to the state attorney's office during an interview that lasted approximately one hour. Taylor acknowledged a confrontation, Carhart said, but disputed that he possessed a gun or his co-defendant had a bat.

According to officials from both sides who requested anonymity, Taylor has submitted to the state attorney a passed lie-detector test, which was conducted by a private polygraphist.

Carhart said he has filed a written not-guilty plea the court will announce, if necessary. . . .

The Redskins yesterday announced that they have signed cornerback Artrell Hawkins.

-- Nunyo Demasio