Full Aim Action "carry over"

By Gregor Eisenhorn, in Dark Heresy Rules Questions

If a character has already performed a half action, can they perform a 'full aim' action with the extra half being deducted from their next turn? This came up in the final battle of Dark Pursuits, at the time I allowed it because a) the player was really struggling to hit anything and b) I was way too busy managing that huge encounter to want to slow it down by finding the RAW. Now though, as I sit on the train to work, I find myself wondering! What are your thoughts?

Awesome thanks, that topic sums up my thoughts nicely. Have a like, my good man!