Updated

The father of a Texas teenager who used an "affluenza" defense in a fatal drunken-driving wreck has been found guilty of falsely identifying himself as a police officer two years ago.

A Tarrant County jury on Wednesday sentenced 51-year-old Fred Couch to a year's probation. If he violates the terms, he could be jailed for up to 120 days.

In a dashcam video shown to jurors, Couch tells North Richland Hills police officers responding to a disturbance that he is a reserve officer.

Defense attorney Scott Brown says Couch, who carried a "Lakeside Police" badge, never asserted authority with it.

APTOPIX Deadly Wreck Affluenza

Ethan Couch is led to a juvenile court for a hearing Friday, Feb. 19, 2016, in Fort Worth, Texas. Couch, who used an "affluenza" defense in a fatal drunken-driving wreck is set to appear over whether his case should be transferred to the adult system. (AP Photo/LM Otero)

Couch's son, Ethan Couch was 16 when he killed four people in a drunken-driving wreck. A defense expert argued at trial that Couch's wealthy parents coddled him into a sense of irresponsibility.