Who exactly is this "Inspector Harris" that is supposed to be with the TSA?

For security checkpoints, I know the TSA has (1) TSO screeners (2) TSO lead (3) TSO Supervisor and (4) TSO Manager. At the airport level there is usually an (1) AFSD and a (2) FSD as well as some administrative support staff.

Does the TSA have "Inspector's" that work in airports? Or was this guy perhaps a LEO with another agency acting on behalf of the TSA in some respect? If someone approached me and said they were "Inspector Harris", I would probably assume the person was a LEO - but I would also ask to see their credentials as I would if I had an encounter with an ununiformed police officer.

Since the TSA is being sued as a result of this "Inspector Harris", I'm interested in knowing who he is and where he falls under the scope of the TSA. What exactly does a TSA Inspector - such as "Inspector Harris" do? Are they actual peace officers or LEOs in some capacity?

I know the TSA is not a law enforcement agency - it's an administrative government agency -- but it's my understanding individuals with other entities (i.e. Bureau of Indian Affairs) can be sworn in as a federal peace officer in some cases.

So TSAer's: What other "positions" are out there at the airport level aside from the TSO's and such you would encounter at a checkpoint?