Corinne Bastarache, 18, of Chelmsford, Mass., was shot twice when Smith returned fire. She was discharged from St. Joseph Hospital last weekend, but remains jailed, unable to post $100,000 bail.
Bastarache admitted shooting at Smith when questioned at the hospital by State Police Sgt. David Crawford and Assistant Attorney General Joseph Laplante, according to a court affidavit.
The affidavit was filed in Nashua District Court after her arrest, but remained sealed until Thursday.
Bastarache is charged with attempted first-degree assault and reckless conduct, felonies punishable by up to 10 to 20 years in prison.
The incident began when Smith approached Bastarache and a friend, a 15-year-old Chelmsford girl, in the parking lot outside a 7-11 store just after midnight May 27.
The two teens had run away from their homes two days earlier, and walked up the railroad tracks to Nashua, then over to Hudson.
When Smith approached them, they were loitering outside the store, waiting to meet two youths who had offered to give them a ride to Manchester.
Bastarache was armed with a .357-Magnum revolver she had taken from her father's house, her friend later told police.
Smith approached the teens to check their well-being and both refused to identify themselves. Smith meant to take at least the younger girl into custody, according to the affidavit.
The girl resisted and while Smith was trying to get her into his cruiser, Bastarache backed away, drew her gun and fired, she told Crawford and Laplante.
Bastarache said she hoped to wound Smith so she and her friend could steal his cruiser, according to the affidavit.
Smith pushed the 15-year-old aside and returned fire, hitting Bastarache in the shoulder and abdomen.
The 15-year-old was charged as a juvenile with resisting detention, and released to her parents pending a hearing in Nashua District Court.
Bastarache is being held as a Hillsborough County inmate at the state prison for women. She is to appear in Nashua District Court for a probable cause hearing Tuesday.
Her lawyers, public defenders Stuart Hurowitz and Jennifer Riggs, have not returned phone calls seeking comment.
(Copyright 1998 by The Associated Press. All Rights Reserved.) APTV-06-05-98 0908EDT