ST. LOUIS – FOX 2’s investigation into the St. Louis Sheriff’s child transports has taken a twist, as we discovered the latest transport happening in an unmarked sheriff’s car.

Last month, FOX 2 showed you a uniformed sheriff’s deputy picking up the sheriff’s children from school in a marked government car.

Attorney Bevis Schock told us it violates Missouri law.

“If you get something of value by virtue of your office, that’s other than your salary, that’s what’s prohibited,” he said.

We learned the sheriff continues having the same deputy pick up his children from school. The latest incident occurred on Truman Day, a Missouri holiday with the courts closed. This time, a sheriff’s deputy was driving an unmarked car.

Sheriff Alfred Montgomery, who is already under investigation by the FBI, has refused to talk about it. His attorney claimed in a written statement that the deputy is off duty during the rides.

We had more questions, so a FOX 2 crew went to Tuesday’s land tax sale to see if we could catch up with Montgomery. The sheriff approached and asked us to follow him away from the crowd, where we thought he would finally answer our questions.

He did not.

“You have to stop violating the policies and rules at the courthouse, ok? I understand you don’t have respect for me as the sheriff,” he said. “So please, you can’t video out here. You know that. You know better. You cannot video a land sale tax meeting. Please respect the office, thank you.”

While chasing after the sheriff for a comment, we spotted Bevis Schock, the same civil rights attorney who originally weighed in on the child transportation issue. We asked him about our right to be here.

“Chris, I was walking by; you collared me. I understand you were told by the sheriff you could not videotape a tax sale. It’s my instant legal opinion that is wrong,” Schock said.

“As we can see behind me, it’s a very public event. It’s open to any citizen to either bid or just attend and watch. To say that an event that’s occurring in public can’t be videotaped by the news is just simply false.”

FOX 2 News will keep pressing for answers as questions are only mounting.