Weezer Bassist's Spouse Allegedly Fired Gun Earlier than Police Shot Her

3 PM PT — Los Angeles Police Dept. Spokesperson Jennifer Forkish tells TMZ … “Our investigation revealed evidence such as a shell casing and video footage showing she repeatedly ignored police commands to disarm and that she fired her weapon at LAPD officers. She was subsequently booked for attempted murder of a peace officer.”

We’re learning more about the police-shooting incident involving Jillian Lauren Shriner, wife of Weezer bassist Scott Shriner, in L.A. this week … and she’s been released on $1 million bond after allegedly firing a single shot and being booked for attempted murder.

TMZ also obtained police-scanner audio, which provides new insight into Tuesday’s crazy shootout between Jillian and the LAPD.

As you can hear, officers on the ground and helicopters flying overhead coordinate a response to search for a male suspect … who apparently stripped down to his boxers and dove into a pool in an attempt to throw off the chase.

Jillian was shot by police when she emerged from her house with a gun in her hand as the male suspect prowled her next-door neighbor’s backyard, where the pool was located.

As we reported yesterday, CHP and LAPD officers responded to a hit-and-run crash on the 134 Freeway Tuesday around 3:30 PM … one of three suspects ran from the scene into the surrounding Eagle Rock neighborhood and into a backyard next door to the Shriners’ house. Jillian allegedly came out of her house with a gun in hand … and cops searching for that suspect allege she pointed her weapon at them.

Police say Jillian ignored multiple commands to drop her weapon … and law enforcement sources tell us she fired one shot. At least one officer fired at her, striking her in the shoulder.

Jillian was treated for a non-life-threatening gunshot injury, then arrested and booked on an attempted murder charge … she was held on $1M bond and later released.

A source with direct knowledge tells TMZ … Scott Shriner was not home during the incident and was at a work-related project. Police said they recovered a 9-millimeter handgun at the house.

The original suspect was arrested at the scene … two other suspects remain at large.