The Long Island police officer who responded to the August call about ex-Met Wally Backman allegedly roughing up his then-girlfriend admitted in court Wednesday he brought along backup — because the woman was such a loose cannon.
Riverside cop Timothy Murphy testified that he knew the former Mets second baseman’s ex, Amanda Byrnes — who is accusing him of shoving her into a wall Aug. 30 — had been arrested 10 times and have seven misdemeanor convictions.
“Is it fair to say that every time Ms. Byrnes made a complaint against a boyfriend you requested a supervisor to accompany you to the call?” asked Backman’s attorney William Keahon.
“Well there is no protocol that requires I take a sergeant,” the cops said, later adding: “I requested him [the sergeant] based on the facts and circumstances of the call.”
Keahon asked: “Are the facts and circumstances of the call that Ms. Byrnes was the complainant?”
“Yes. That may have factored into the equation, yes,” the cop admitted.
The 60-year-old, 1986 World Series champion — who currently manages minor-league team the Long Island Ducks — faces criminal mischief and harassment charges in the incident.
Byrnes, 39, claims Backman is a drunk who assaulted her because he believed she slept with a Ducks catcher — a claim she said was untrue.
He faces up to one year in jail if convicted.
Another of Backman’s attorneys, Stephen Civardi, previously told The Post that his client had a brief relationship with Byrnes and when he tried to break it off with her she staged “a scene where she claimed she had been pushed against the wall and her arm twisted somehow causing a cut on her left hand.”
“She also claimed that he was heavily intoxicated,” Civardi said adding cops refuted that claim in court Tuesday. “None of it’s credible.”
Byrnes — who sued Backman over the incident in September — is set to testify, according to her civil attorney.
The trial could wrap by the end of the week.
Additional reporting by Tamar Lapin