Federal prosecutors say registering at a hotel under a false name cost real estate heir Robert Durst his right to privacy there.

That opens their 65-page response to defense lawyers' contentions that all evidence found in Durst's New Orleans hotel room should be thrown out. That would erase the gun charge that keeps him in Louisiana despite waiving extradition to California on a murder charge.

A judge is expected to hear arguments in the coming weeks on the motion to dismiss all evidence found in his hotel room.

The 72-year-old millionaire is scheduled for trial Jan. 11 on a charge of illegally possessing a .38-caliber revolver after a felony conviction.