A St. Tammany Parish sheriff’s deputy who was stabbed in the back during a domestic altercation was fired Saturday after investigators decided that both husband and wife were partly responsible for the incident.

Derrick Torregano, 29, and his wife, Brittany Torregano, 23, were both arrested, St. Tammany Parish spokesman Capt. George Bonnett said in a news release Monday.

Brittany Torregano was booked with one felony count of child desertion and one felony count of aggravated battery.

Bonnett said she stabbed her husband in the back with a knife. She remained in jail on Monday.

Derrick Torregano, who was booked into the St. Tammany Parish Jail for one misdemeanor count of domestic abuse battery, bonded out on Sunday morning. He was fired and “relieved of his badge” before he was arrested, Bonnett said.

“We recognize the badge of our office as a symbol of public faith, and we accept it as a sign of the public’s trust,” Sheriff Jack Strain said. “Our employees know that they must uphold that trust always, in everything they do. It is what our residents deserve and it is what we demand of everyone who works here.”

Follow Sara Pagones on Twitter at @spagonesadvocat.