What did she expect?

A Defense Department employee was stopped at Newark Airport yesterday after inspectors found inert land mines in her luggage.

Roxan Hatcher, 32, of Union Township, was headed for an early-morning flight to San Francisco with two unarmed Claymore mines she planned to use in a Special Forces training exercise, law-enforcement sources said.

Hatcher, a mechanical engineer at the Army’s Picatinny Arsenal in Morris County, told cops that a co-worker headed for the same destination had an inert mine in her checked baggage that TSA inspectors did not detect.