Some of the firearms confiscated in a yearlong undercover investigation that resulted in the arrests of 70 suspects were put on display at Metropolitan Police Department headquarters Monday in the District by Chief Cathy L. Lanier. (T.J. Kirkpatrick/The Washington Times)

Some of the firearms confiscated in a yearlong undercover investigation that resulted in the arrests of 70 suspects were put on display at Metropolitan Police Department headquarters Monday in the District by Chief Cathy L. Lanier. (T.J. Kirkpatrick/The Washington Times)