In this March 2, 2015 photo, a visitor examines paintings at the public viewing for an auction of items seized from one of Thailand’s highest-ranking police officials, Lt. Gen. Pongpat Chayapam.in Bangkok, Thailand. The four-day auction at a military base outside Bangkok opened Thursday, March 5 featuring what police say are the ill-gotten artworks and luxury goods seized from Pongpat, the longtime head of the Central Investigation Bureau, or Thailand’s FBI. Pongpat is now in prison serving a 31-year-sentence on a range of corruption charges and insulting the monarchy. (AP Photo/Sakchai Lalit)

WASHINGTON (AP) — A former FBI agent in the Washington, D.C., field office has been charged with 64 counts involving allegations that he tampered with substantial amounts of drug evidence, kept heroin seized during investigations in his car, and periodically took the drug.

The charges, including obstruction of justice and heroin possession, were filed Friday against 33-year-old Matthew Lowry in federal court in Washington.

Lowry’s attorney, Robert Bonsib, says in a statement that Lowry will plead guilty to all the charges and “recognizes the importance of taking full responsibility for each of his acts.”

The charges against Lowry caused federal prosecutors to dismiss charges against at least 28 defendants and notify 150 more that Lowry had participated in investigations targeting them.

Lowry faced more than seven years in prison.

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