Nearly 2½ years after a woman allegedly attacked her then boyfriend with a box cutter, Butler police have charged her with the crime.

Robin Danette Hecker, 54, who has no known address, is wanted on an arrest warrant for felony assault. Police got the warrant Friday.

Despite the lapse in time since the purported crime, last week’s filing easily beat the deadline to file under state law.

“It’s a five-year-statute of limitations,” Butler County Assistant District Attorney, Richard Bosco, who consulted with police, said Wednesday.

Hecker is accused of cutting John J. Jackson on Aug. 19. 2013, when they lived together at a home on Mercer Street.

The suspected attack left Jackson, who is now 39, with a large cut on his side and two other deep cuts on both legs.

Police at the time of the original call found the couple at the home. But Jackson claimed he got his injuries after four people jumped him.

Hecker told officers that she did not know what happened to her boyfriend, who got 30 stitches to his side and 20 stitches to each leg.

“And Jackson stated he wanted no further police involvement,” Lt. James Hollobaugh said in his affidavit.

But police last week dusted off the file after Jackson was arrested for domestic abuse for allegedly punching his girlfriend Feb. 7.

While Jackson was being strip searched, Hollobaugh noticed a large scar on his left side. When the officer questioned Jackson about it, he blamed “Robin” for the injury that happened in 2013, documents said.

“(Jackson) stated he wished to prosecute and would provide a statement,” Hollobaugh’s affidavit said.

Police charged Hecker with aggravated assault, a first-degree felony, and reckless endangerment, a second-degree misdemeanor.