Brent was placed on the Reserve/non-football illness list by team officials after he was charged with intoxication manslaughter the result of a car crash that led to the death of teammate and best friend Jerry Brown on Dec. 8.
The Cowboys have not banned Brent from the facility since the voluntary offseason workouts have started and he's allowed to workout if he wants.
Jones said he didn't have an answer regarding Brent's status with the NFL. The league hasn't determined if it will suspend Brent because of his arrest.
"I can't answer that out of fairness to what he's got ahead of him," Jones said.
The Cowboys are being sensitive to Brent's legal situation and want to support him away from the field, but are mindful of the seriousness of his crime.
The charge carries a maximum sentence of 20 years in prison.