A Montgomery County police officer was indicted on a perjury charge by a grand jury Thursday, following an investigation into testimony the officer gave during a trial in February, police officials said.

A Montgomery County grand jury indicted Officer Colin W. O’Brien, a six-year veteran, officials said in a statement. The indictment stems from testimony O’Brien gave during a drug paraphernalia trial in a district court on Feb. 3.

O’Brien had issued a criminal citation on Nov. 1, 2013, against a Silver Spring man for possession of drug paraphernalia, according to court records. The man was found not guilty at the trial, court records show.

Police officials received a complaint about inaccuracies in O’Brien’s testimony during the case and detectives were assigned to investigate, authorities said. The evidence they gathered was presented to the grand jury, which handed down the indictment, officials said.

Police officials did not release any information from their investigation.

O’Brien has been suspended with pay since June 5. The perjury count is a misdemeanor which has a maximum sentence of 10 years.

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