Wilmette police confiscated a handgun and steroids from a home after a woman allegedly threatened her husband over an alleged affair.

The woman was not charged for threatening her husband with the weapon, because her husband declined to sign a criminal complaint and police determined she used the gun in self defense. The man was not charged with possession of the steroids, according to a police report.

Officer arrived at the home in the 2500 block of Old Glenview Road at 5:26 p.m. Dec. 20 and recovered the .25-caliber pistol from a toiletry bag in the home’s second floor.

The woman told police she and her husband had argued after she confronted him in Chicago earlier in the day with another woman. He denied an affair, but his wife told him to stay at a relative’s home in Northbrook.

When he returned home a few hours later to retrieve clothing his wife had left on the front porch, he allegedly tried to enter the home because he didn’t like the clothes she had chosen. He used a brick to break a window and unlocked a rear door but was confronted by his wife, who was holding the pistol.

He left, and called police 40 minutes later, according to the police report.

Neither resident is a registered firearm owner, and the gun had been inherited from a family member’s death, according to the report.