WASHINGTON (AP) — The Drug Enforcement Administration paid an Amtrak employee hundreds of thousands of dollars over two decades to obtain confidential information it could have gotten for free, according to internal investigators at the railroad.

According to a report released Monday by Amtrak’s inspector general, the DEA paid an Amtrak secretary $854,460 to be an informant. The employee was not publicly identified except as a “secretary to a train and engine crew.”