Law enforcement isnt who you contact to get a ruling or determination on a federal regulation.. cops know nothing about this at all (whether we're talking local, state, or federal)..
you contact the agency, organization that "owns" the regulation.. and speak to the people responsible for regulatory enforcement..
In this case we are talking about ITAR... which is controlled by the Directorate of Defense Trade Controls (DDTC) within the Pol-Mil bureau of the US State Dept..
In the post above a link from a law firm, that specializes in law related to ITAR was provided...
Lawyers are also a good source for getting someone to explain federal regulation if you find one that specializes in that sort of thing..
Companies that possess DDTC certification for ITAR export, have an up to date export controls manual in place that specifically addresses how to walk the dog on all matters related to ITAR, EAR, DEAR, etc and that routinely exports regulated/controlled items as part of doing business with the US government, and know a couple of guys at DDTC by name, is another great source.. Theyre especially good if one of their senior executives has done quite a bit of work on the side as an ITAR consultant and has helped multiple companies get set up for ITAR/EAR/DEAR compliance as they expand into international operations...
(I might know someone that resembles this description)...
I do however agree with you... taking ITAR advice from someone you never met on the internet is a bad idea...
Which is why the link was provided..