All depends how good a hacker he is and if he wants to go straight. If he did hack high level stuff, then he should be offered a job. If he isn't then he should be arrested and charged under British law. Crimes like this, where there are no victims should not be expedited, especially when our laws cover it.
If it was murder or he sold information from the army etc, then he should be expedited.
If it was murder or he sold information from the army etc, then he should be expedited.