Shane Lamond sentencing Enrique Tarrio.

A retired police officer was sentenced on Friday to serve 18 months behind bars for lying to authorities about leaking confidential information to the Proud Boys extremist group’s former top leader, who was under investigation for burning a Black Lives Matter banner in the nation’s capital. Shane Lamond was a lieutenant for the Metropolitan Police Department in Washington, D.C., when he fed information about its banner burning investigation to then-Proud Boys national chairman Enrique Tarrio. Last December, after a trial without a jury, U.S. District Judge Amy Berman Jackson in Washington, D.C., convicted Lamond of one count of obstructing justice and three counts of making false statements.