Per Fiba: "A steal is credited to a defensive player when his positive aggressive action causes a turnover by the opponent. No steal is credited if the ball becomes dead and the defensive team is awarded possession of the ball out of bounds. A defensive player can achieve a steal in a number of ways:
• Taking the ball away from an opponent holding or dribbling the ball.
• Intercepting an opponent's pass.
• Tapping the ball away from an offensive player in control of the ball or deflecting
an opponent's pass either:
- Directly to a teammate.
- Such that the ball is loose and a teammate retrieves the ball.
- Such that the ball is loose and a teammate and an opponent grab the ball
simultaneously, a held ball results and the defensive team is awarded the ball
according to the alternating possession rule. (Obviously this cannot happen
when the alternating possession is awarded at the start of a period of play)."
http://homepages.tesco.net/~Roger.Ya...ats-manual.pdf
Per NCAA: A steal is credited to a defensive player when his positive aggressive action(s), which includes contact with the ball, causes a turnover by the opponent. This may be accomplished by:
(a) Taking the ball away from an opponent in control of the
ball.
(b) Getting a hand on the ball in control of an opponent and
causing a held ball to be called, and having his or her
team be awarded the ball for a throw-in.
(c) Batting a ball in control of an opponent to a teammate.
(d) Batting a ball in control of an opponent away from and
off the opponent and out of bounds.
(e) Intercepting an opponent’s pass.
(f ) Deflecting an opponent’s pass to a teammate.
(g) Deflecting an opponent’s pass away from and off an opponent
and out of bounds.
http://web1.ncaa.org/web_files/stats...sy%20print.pdf
Per Wikipedia: "In basketball, a steal occurs when a defensive player legally gains control of the ball from an offensive player. This can be done by deflecting and controlling, catching, or batting (to a teammate) a pass or [dribble] of an offensive player."
So we never found the NBA specifics (again, I'm horrible at searching for things on the web) but each basketball rule book and definition we could find supported the fact that steals are indeed awarded to the player creating the turnover.