Officer O'Donnell here is going to just do a quick test with your eyes. >> Any issues with your eyes? I should know about you don't wear glasses or nothing. Okay. So, put your feet together like this. Hands by your side. Okay. All right. So, you see the tip of my pen. You're going to follow that with your eyes and your eyes only. Okay. You're not going to move your head. Do you understand? >> Yes, sir.