This was an FA released LOTG test, and the question revolved around a player taking the free kick prior to the whistle. The correct answer was that the player should be cautioned.
It was something (from memory) along the lines of a 'a player is clearly told to wait for the whistle before taking a free kick, and then as the referee starts marking out the required distance and before giving the signal, the free kick is taken and goes in the goal - what is the correct outcome?'
The answer given was 'Disallow the goal, retake the free kick and caution the player that took it early.'
What the colleague found wasn't that section, it was something that says if a player takes a free kick before the whistle after being told it must be after the whistle, the player must be cautioned.