What follows is a reworked version of
So, What's A "Threat To National Security"? which contains a difference in emphasis.
Kim Strassel raised an interesting question, Friday, in her regular weekly column--
The Curious Case of Mr. Downer: His story about the Papadopoulos meeting calls the FBI’s into question. Alexander Downer was the Australian ambassador to the UK in 2016. As the title indicates, Strassel finds the FBI's claim that their probe of the Trump campaign was based on Downer's contact with George Papadopoulos to be ... less than credible. Strassel concludes by raising some very pointed questions:
For months we’ve been told the FBI acted because it was alarmed that Mr. Papadopoulos knew about those hacked Democratic emails in May, before they became public in June. But according to the tipster himself, Mr. Papadopoulos said nothing about emails. The FBI instead received a report that a far-removed campaign adviser, over drinks, said the Russians had something that might be “damaging” to Hillary. Did this vague statement justify a counterintelligence probe into a presidential campaign, featuring a spy and secret surveillance warrants?
Unlikely. Which leads us back to what did inspire the FBI to act, and when? The Papadopoulos pretext is getting thinner.
Indeed--since when does "something that might be 'damaging' to Hillary ... justify a counterintelligence probe into a presidential campaign, featuring a spy and secret surveillance warrants?"
The fact is, there is an answer to Strassel's question, and I think we'll find--in fact, recent talking points floated by James Clapper and others point in this direction--that the justification will rely on provisions of the Attorney General Guidelines. To understand and evaluate this defense, however, and to avoid the pitfalls of speculating with a firm grasp of the controlling guidelines and statutes, we'll need to explore the nature of FBI investigations, because the type of investigation controls, to some extent, the type of investigative techniques that are authorized. All this is set out in detail in the
Attorney General Guidelines For Domestic FBI Operations (AGG) and the
FBI Domestic Investigations And Operations Guide (DIOG).
Basically, there are three types of FBI investigations that involve opening an investigative case file: 1) Assessments, 2) Preliminary Investigations, and 3) Full Investigations. The latter two are grouped as "Predicated Investigations" because, unlike in the case of an Assessent, an agent will need to present some degree of factual predication before he can open one of these types of investigation. The type of investigation that is opened will depend upon the factual situation, and if additional facts are developed in the course of the investigation the type of investigation may be upgraded.
As far as investigative techniques go, the Assessment serves as a baseline--any technique that can be used in an Assessment can also be used in a Preliminary or Full Investigation. For our purposes, the important point is that
the use of existing informants (Confidential Human Sources/CHS)
or the recruitment of new informants is authorized for ALL three types of investigations. There has been some confusion recently regarding the use of informants before a "formal" case has been opened. The confusion arises because Assessments are sometimes confused with the informal initial checking of investigative leads conducted to determine whether or not to open an investigative case file. That type of informal checking can only be conducted using public information, not through the use of informants.