The relative calm of a residential city area was disturbed late Saturday afternoon in Escalon, as an attempted warrant arrest of one man eventually led to a chase and the arrest of two people.

Police said Officer K.J. Vandagriff was on routine patrol and observed a subject with known warrants standing in front of a home in the 1500 block of Sophie Lane shortly before 7 p.m. on June 15. The man, identified as 26-year-old Aaron Welch, was known to have two active warrants, one for felony negligent discharge of a firearm and the second for misdemeanor dangerous weapons violations. The firearm discharge occurred earlier this year at a local restaurant and the dangerous weapons charge was also handgun related.

When Officer Vandagriff attempted to make contact with Welch, the man fled the scene on foot, with the officer following in pursuit and other officers soon arriving to assist. The police department had also received information that Welch had maintained possession of a firearm since the earlier felony weapons discharge incident, so officers were uncertain if he was armed as they began the pursuit.

Officers chased Welch through multiple residential yards in the area, police said, and eventually back to the home where he was originally observed, that of his girlfriend, identified by police as Alysia Stagno, 37, of Escalon.

When he arrived there, Welch locked himself inside the house and police said Stagno also became combative, resisting officers’ orders, kicking one and scratching another.

As police attempted to get Welch to leave the residence, they called in a K9 unit from the San Joaquin County Sheriff’s Department. With assistance from the canine officer, Welch was found hiding in a bedroom of the residence and sustained bite injuries before he came out of the home.

Stagno was booked into San Joaquin County Jail on suspicion of obstruction of justice, two counts of threatening a public official, and two counts of battery on a police officer.

Welch was first treated at San Joaquin County Hospital for dog bites and then was booked into county jail for the two warrants and obstruction of justice.