Nick, the reason it takes months is that it goes into a investigation stage. During this stage they are comparing handwriting between tests and ensuring security procedures were followed.
In these cases they have looked at both ACT/SAT scores and compared these scenarios as well. End summary, they don't make you take the validation test unless something has been found or suspect.
Here is the deal, I'm not saying the young man cheated but if you are going to cheat. Cheat on the first test and never take another. With only one test there has never been a case of having to take a validation test.