I would strap a Lie Detector on him before I asked him anything. Please. You started taking steroids after started playing in Texas? Give me a break.
If he had a Lie Detector on him I would ask this.
How many other players knew you used steroids?
When did you really start using them?
How did you find out how to get them?
These questions are not valid for polygraph purposes.
Typically polygraph questions are multiple choice or have yes or no answers.