I am getting word locally that some cities, specifically Portland, but not the outlying areas are going to some sort of new federally "cooperative" program of enforcing every possible gun law to the most restrictive interpretation they can come up with.

I strongly suspect that the common denominator on this is cities with major federal courthouses and BATF offices which "assist" in the operations.

Bully tactics include:

Undercover "sting" operations frequently and in depth, often immediately after some obscure legislation is passed or new case law comes out.

Frequent audits and threats of audits on businesses which refuse to cooperate in restricting public access to "assault weapons" high capacity magazines and bulk ammunition purchases. A pawn shop manager told me that his decision to stop selling guns and gun related items was directly related to the police shutting his store down frequently a few days at a time in order to "audit" it.

Cooperative audits of business licensing procedures that may be relevant to all involved jurisdictions. For example, certain buildings in certain neighborhoods may be under certain kinds of water or sewage restrictions, but only the gun selling business gets the scrupulous audit.

Gun shops which take trade-ins being forced to get second hand dealer's licenses, which require them to report all merchandise purchased, whether from wholesalers or the public, and hold it two weeks for "inspection" prior to sale.

Soliciation of complaints from the neighborhood where a place sells guns, ammunition or related items. This includes even going door to door soliciting complaints from anyone who might have a problem with the presence of the shop or its customers.