There's more to the story. Either the treatment is in response to the (supposed) recently discovered jail-break plans, or the lead officer has determined that Titus is a threat for some other reason. So much pre-unreleased information will come out during the trial, it may make sense then.
By the way, Titus really blew it when he dumped Boozang. His best chances dissolved at that point.
And, yes, the changes to his physique would be amazing to some.