A domestic assault charge against Chattanooga Police Officer Brian Smith was dismissed in General Sessions Court on Thursday.
Prosecutor Rodney Strong said the officer's wife now denies that he began strangling her in an incident in May.
Judge Christie Sell then dismissed the count.
After the charge, Officer Smith had been relieved from duty with pay pending the outcome of the Internal Affairs investigation.
His wife, Ginny Smith, was also arrested. She was charged with vandalism.
Ms. Smith was placed on diversion for 11 months and 29 days. She was directed to make $490 in restitution to Officer Smith.
A no contact order in the case was lifted.
Ms. Smith initially said they were in the den of their home on Thornhill Lane when her husband became very angry. She said he got up out of a chair, came over to where she was sitting, grabbed her around the neck and began strangling her.
She said he then grabbed her in the middle of her bra and kept pushing her back in her recliner while saying, "If I am going down, I might as well kill you."
Ms. Smith said he drew his fist back as if he was going to hit her, then he pushed his fist against her face.
She admitted to damaging family property, including photos and memorabilia. She said most of it was hers, but she stabbed two Pittsburgh Steelers footballs that belong to her husband because she was angry.
The officer's son said he heard his father say, "I'm tired of these games. I just want to knock your head off."
Officer Smith said they had been married for three years, but that she had begun destroying some of his property over the past few days. She said on Sunday they began arguing about a birthday party his son wanted to attend.
He said he got angry, got in her face and said, "I should knock your block off." He said he did not actually strike her, but cocked his fist back as though he were and he pushed her hands out of the way when she put them over her face.
The officer said she had cut up several family pictures and some of his Steelers memorabilia.