I think this is what he's taking about.
http://loadedgear.com/blog/louisiana-state-police-to-sign-off-on-nfa-forms-video/
Effective 5/11/2015, the Louisiana State Police Concealed Handgun Permit Unit will begin accepting applications for the purpose of obtaining a Chief Law Enforcement Officer signature on the ATF Form 4. The Superintendent of the Louisiana State Police, or his designee, may at their discretion, sign as the Chief Law Enforcement Officer for the transfer/registration of certain "firearms", as listed on the "Application for Tax Paid Transfer and Registration of Firearm", ATF Form 4 (5320.4).