FLINT, MI -- A Mt. Morris couple who police say sexually abused and photographed their infant daughter have been found guilty of all counts.

Two juries returned guilty verdicts against Dan and Alisha Hall.

Daniel Hall's verdict was read Nov. 1 but remained sealed until after jurors returned their verdict against his wife Friday morning.

Genesee County Prosecutor David Leyton said he was gratified that the jury listened to the evidence in the case and returned an appropriate verdict.

"It's senseless to think a couple could violate their own infant child," Leyton said. "It's incomprehensible to me."

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In testimony last week, Daniel Hall admitted that he had sexually abused his

then six-month-old daughter. Police have said they found more 700 images of child

pornography -- including 13 pictures showing Daniel Hall engaging in sex

acts with his daughter -- on computers in the couple's home.

Prosecutors argued that Alisha Hall, 26, photographed the abuse and failed to protect her child.

The trial nearly went for naught when Genesee Circuit Judge Geoffrey Neithercut said Oct. 30 that he would

after defense attorneys argued prosecutors failed to turn over all the evidence in the case.

However, Neithercut ruled the

after he reviewed the evidence and heard arguments from attorneys Nov. 1.

Daniel Hall, 25, was convicted of first-degree criminal sexual conduct, child sexually abusive activity, distributing child sexually abusive materials and communicating with another person over the internet to commit a crime.

Alisha Hall, 26, was convicted of first-degree criminal sexual conduct and child sexually abusive activity.

Leyton said the criminal sexual conduct charges carries a minimum sentence of 25 years in prison.

Neithercut could sentence the couple to life in prison when they return to court Nov. 27.

"I've been in law enforcement 21 years and it's the most disturbing thing I've ever seen," Mt. Morris police Chief Keith Becker said after the couple's arrest.

The investigation that led to the arrests began last year in Saginaw County, Becker said.

He said an anonymous Birch Run couple told police in October 2011 that the Halls, through a swingers' website, asked them if they had a young daughter that they were willing to involve in sexual activity.

Birch Run police began investigating and Daniel Hall eventually made the same request to an undercover officer, Becker said.

Police say Alisha Hall, who was pregnant at the time of her arrest, confessed to the crimes.

Alisha Hall

just weeks after she was arraigned on the charges.

Leyton said the couple's custodial rights have been terminated and the two children are in the foster care system.

Both of the Halls underwent psychiatric testing prior to their case being bound over to circuit court for trial.

Two doctors that examined Daniel Hall said he exhibited over-exaggerated symptoms of mental illness to try and persuade doctors that he was unfit to stand trial.

During the doctor's evaluation process,

, a doctor at the state Center for Forensic Psychiatry, that he had a demon inside of him and that he spoke in tongues.

Psychologist Allen Bellamy testified that Daniel Hall told him he was chief eunuch Belshazzar, an apparent reference to the Bible's Book of Daniel, rather than Daniel Hall.

"He was a prophet trying to save souls in jail," Bellamy said.

Candyce Shields, a forensic psychologist at the state Center for Forensic Psychiatry,

and said she may have difficulty staying engaged during a possible trial.

Shields said Alisha Hall suffers from intellectual limitations and some trouble processing verbally- and orally-presented language.