It is claimed that because the evidence against Choak was stolen it can't be used. This would apply only if police or an officer of the court was involved in the theft. Because it was a third party the evidence is still admissible, but clearly the person who stole it is in trouble, as are the people who received the stolen goods.
At one point Leesh is told that her students wanted to '100101' her, which is 37 (binary) or % (ASCII).
It is more likely that he omitted a 0, and meant to say '1000101' which is binary for 69.