Listening to the dang police interview again.
Day 10, Part 3 at about 1:10 to 1:14mark. They are discussing Joey's banking/credit cards.
CM is asked if he had access to Joey CC? CM answers, "No", states Joey would just write the CC number down for him to use and he would buy lights, etc. (NEVER MENTIONS HE WAS GIVEN ACCESS TO QB)
CM is asked if Joey has a Union Bank account. He answers: "no question about that because all his checks to me were from Union Bank". (NEVER MENTIONS HE WAS GIVEN PERMISSION TO WRITE HIMSELF CHECKS)
Here is my ? about having the numbers: Even in 2010, you needed the CC #'s AND the security code #'s on the back of a card, as well as the expiration date to purchase anything over the phone/online etc. To me, this is CM trying to "cover" his tracks, once again in his life.