The shooting of a 78-year-old woman by her husband in Red Lion will not lead to criminal charges, the York County District Attorney's Office said.

Joan Reichard was shot in the chest early in the morning on Saturday and taken to York Hospital with what state police said at the time was a non life-threatening injury.

According to police, Reichard's husband, also 78, had believed she was an intruder. Police responded to their West Maple Street home around 3:30 a.m.

Trooper Brent Miller, a state police spokesman, did not provide more details on what led up to the shooting, saying that something startled her husband and woke him up. He declined to provide the husband's name.

Reichard was shot inside a bathroom in the home. Miller had no update on Reichard's condition and a York Hospital spokesman did not have information for her.

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Miller said the department believes the man's medical issues were a factor in the shooting. He said Wednesday those medical issues affect the man's mental state, declining to comment further.

In a statement, a spokesman for the DA's office wrote: "After a careful review of the facts, consultation with the Pennsylvania State Police and review of the law, it was determined by this office that charges were not warranted in this matter."

He declined to comment further.

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One local attorney, Matt Menges, who is not associated with the case, said state police and the DA's office most likely would be reviewing state laws related to protecting oneself in a home.

There is a presumption in state law that a resident can assume someone is a threat, even if they haven't done anything threatening or violent.

That's the case if certain criteria, including if the intruder entered the home unlawfully, is met.

"And so what PA law says is when someone enters your home unlawfully and forcefully…you don’t have to stop and ask them, 'Are you here to take my TV or are you here to hurt me?'" Menges said. "You assume they're here to hurt you."

The Red Lion case, Menges said, appears to be a case of what attorneys refer to as the legalese of "mistake of fact," meaning he mistook who was in his house.

And, Menges said, "mistakes of fact are generally excusable."