We frequently have employees from The Bureau of Labor Statistics approach our apartment building, looking to get info on some of our residents. Typically, we deny them entry and never provide them with any resident information, despite their tactics of intimidation and bullying. If they can't reach the resident via of the intercom, they're out of luck. Barring a court order, I believe we're under no legal/lawful obligation to give them anything.
Recently, one such federal employee said she was merely being courteous by asking to enter the building. She said that, by law, she and all federal employees are above all "no trespass" laws and can enter onto any property and there's nothing a property owner can do about it.
Is that true? Can they just trespass all over the place, even on private land? Can't I tell them they're trespassing and insist that they leave?
Thanks.

