A Natrona County man is accused of strangling his wife and then telling a 911 operator that nothing had happened.

Joseph Polzer had pleaded not guilty to two felony charges of strangulation of a household member, one felony charge of influencing, intimidating, or impeding jurors, witness and officers, one felony charge of blackmail, one misdemeanor charge of domestic battery and one misdemeanor charge of interference with emergency calls.

Investigators with the Casper Police Department say in late June 2015, Polzer, his wife and a witness were working on a vehicle, when Polzer became angry about something, then pushed his wife into the garage and grabbed her by the throat.

The witness started to call 911 on her cell phone, and when Polzer realized it, he turned his attention to her and chased her down and took her phone.

The call managed to get through and Polzer told the 911 operator that it was an accidental dial and everything was fine at the residence.

When police arrived, they were informed of what happened, and noticed various fresh injuries on Polzer's wife.

When interviewed Polzer said he had accidentally activated the emergency dial feature on his phone, however the caller ID that 911 operators received at the time, showed a different number that wasn't Polzer's.

He is awaiting trial on $75,000 bond and could face up to five years in prison on the strangulation charges, up to 10 years in prison on the influencing, intimidating, or impeding jurors, witness and officers charge, up to 10 years in prison on the blackmail charge, up to six months in jail on the domestic battery charge, and up to six months in jail on the interference with emergency calls, if convicted.

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