The Tennessee Titans cornerback is currently on suspension following a melee and shooting at a Las Vegas strip club.
Jones, his group and three other people got into a fight, apparently over a woman, at a club around 4 a.m., officer Ariel Toledo said.
After everyone involved left the strip club — the three people in one car, and Jones and his entourage in three other cars — someone in Jones' group shot at the car, and the others returned fire, Toledo said.
Toledo said Jones was not present when the shots were fired.
"We believe he knows some of his entourage who were involved in the shooting," Toledo said. "On himself, we do not have any charges on him. He wasn't there when the shooting occurred."
One person who was outside the vehicles and not involved in the dispute was injured by debris in the shooting and was treated by emergency medical technicians, Toledo said.
Manny Arora, Jones' attorney, said he expects Jones will give the police whatever help he can.
"I've got to sit down with him and sit down with the police and figure out what we're looking at or if in fact he can even help them," Arora said. "Once we agree to do that, I will do it very privately and we'll take care of it."
He said that may be in person, by phone or even by e-mail.
"Adam was not involved, they'll tell you, in the shooting," Arora said. "His car wasn't there or anywhere near the scene. They simply are just asking him ... much like any other witness, if anything happened inside that might help them figure out who was involved."
Authorities have also been investigating what role Jones had in a February shooting outside a Las Vegas club that left a bar employee paralyzed and two other people wounded.
Attorney Robert Langford said no evidence tied Jones to the shooting, but an aide to Clark County District Attorney David Roger said it could take several days to decide if there is enough information to file charges against Jones and two friends.
The Titans, busy with their annual golf fundraiser Monday, did not immediately return a message Monday. But team officials have declined to comment on Jones since his suspension.
The Las Vegas allegations were the 10th time Jones had been questioned by police, which also included an incident in April 2006 when police identified him from surveillance video diving for cover after shots were fired at a Nashville gas station.
Jones has been arrested five times. Two arrests he did not report to either the Titans or the NFL, leading NFL commissioner Roger Goodell to suspend Jones in April for one season. But Jones has not been convicted of any crimes since being drafted in 2005.
He was the Titans' best defensive player in 2006 with four interceptions. Two of those came in their stunning rally from a 21-0 deficit for a 24-21 victory over the New York Giants in the final 10 minutes. He also led the NFL in punt return average and tied a team record by returning three punts for touchdowns.
But Jones has done little to help his case since being suspended.
The cornerback agreed last week not to appeal the suspension. The 23-year-old player could be reinstated after 10 games for good behavior if he adheres to conditions set by Goodell and is not arrested again. Missing the entire season would cost him his salary of nearly $1.3 million.