(CBS) — It’s happened again: Another Schaumburg police officer has been stripped of his police powers.

That marks the fourth time in as many months that a sworn officer in the village has run afoul of the law.

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CBS 2’s Mike Puccinelli reports.

Police sources say the officer has been stripped of his police powers and placed on leave.

The reason: Sources say he allegedly kept a gun turned in by a suicidal resident. That happened, police sources say, on April 23 when the despondent citizen and the counselor showed up at the police station hoping to turn in the weapon.

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The officer then asked the two to step outside, where he offered to buy the .22-caliber revolver. When the two refused, he then took the weapon without filling out a report.

Three days later, one of the citizens reported what happened to Police Chief Ken Bouche.

Five hours after taking the report, the police chief had confiscated the weapon and placed the officer on leave.

CBS 2 has also learned this is the same officer who is being investigated by the Illinois state police for allegedly taking heroin from the scene of a fatal overdose.

Schaumburg police learned of the possible theft while investigating the conduct of three disgraced officers who, earlier this year, were arrested for attempting to resell drugs seized in police investigations.

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Schaumburg police declined to be interviewed on-camera. The public information officer said he could only say the Cook County State’s Attorney’s Office is investigating.