The reports suggest that the ATF may be engaging in “knock and talk” investigations, in which federal agents engage in dubious tactics with American citizens.

Sen. John Barrasso (R-WY) and Sen. Joni Ernst (R-IA) leave Senate Minority Leader Mitch McConnell’s (R_KY) office in the U.S. Capitol Building on August 01, 2022 in Washington, DC. (Anna Moneymaker/Getty Images)

Ernst set out her reasoning in the letter as obtained by Breitbart News:

In all of the ‘knock and talk’ incidents brought to my attention, none involved the presentation of a warrant. Simultaneously, multiple ATF agents, dressed in official ATF gear—including bulletproof vests—did not inform the resident purchaser of the optional nature of his or her participation in brandishing the requested firearm.  The combination of these factors calls into question whether the ATF’s actions are meant to harass or coerce firearm purchasers into, at best, legally questionable ‘investigations.’

In the missive to Garland, Ernst demanded to know the criteria ATF uses to establish probable cause before the “knock and talks,” if the ATF obtains warrants for these visits, the number of visits conducted with a warrant, and if a warrant is not used, then what legal basis they have to ensure citizens’ Fourth Amendment rights are protected.

In the letter, Ernst requested details on the criteria used by ATF to establish probable cause prior to “knock and talks,” whether or not ATF obtains warrants for these visits, the number of visits conducted without a warrant, and, if no warrant is acquired, what the legal basis is to ensure a purchaser’s Fourth Amendment rights are protected during the visit, among other information.

Read Sen. Ernst’s letter to Attorney Garland here.

Sean Moran is a congressional reporter for Breitbart News. Follow him on Twitter @SeanMoran3.