A Union City woman studying to be a Hudson County corrections officer has been arrested on charges she allowed her young daughters to live in a home where her 75-year-old father allegedly had child pornography hanging on the walls "throughout the apartment," authorities said.

The woman, 31, of Palisade Avenue near 48th Street, is charged with two counts of child abuse for allowing her children, 6 and 8, to reside in her father's apartment, where numerous photos of nude and partially nude woman were on display, the criminal complaint says.

She is also charged with allowing her children to live in the apartment which was "in disrepair and unsanitary for a child to reside," the complaint says. Finally, she is charged with two counts of neglect, the complaint says.

The woman's father, 75, of the same address, is charged with possession of child pornography and having "pictures of nude girls believed to be under the legal age of 18 in full display hanging on the walls throughout his residence ... where two minor children reside," the complaint says.

Their names are being withheld to protect the identity of the children.

The man is also charged with promoting child pornography, according to the complaint, which says he also had "numerous pornographic videos lying around the apartment in plain view of his grandchildren who reside at the location."

Police said two of the nude photos appeared to be of girls under the age of 16.

The home was "not suitable for habitation due to the disrepair of the apartment and unsanitary living conditions consisting of mouse droppings visible throughout the apartment and on the bed where the children sleep," the complaint says.

The apartment came to the attention of authorities on Oct. 11 when Union City police responded to the location based on a request for a welfare check. Police then called the state Department of Youth and Family Services and the Union City Health Department and each sent representatives.

In the apartment police also found two handguns in a safe and two unsecured rifles, a police report says. The 75-year-old had permits for the weapons, as well as for a third handgun, which he could not find while police were there, the report says.

Among the nude photographs on the apartment walls was that of a neighbor, the report says, adding that the man told police the woman had asked him to scan her nude photograph and he had kept a copy without her knowledge and enlarged it. In the apartment's kitchen police found a caged bulldog, as well as a parakeet, pigeons and a turtle, the report says, adding that police found extreme hoarding conditions and the floor was barely visible.

The police report says there were large military-style knives and samurai swords hanging in every doorway.

The city Health Department found the apartment was "a danger" and the children were moved to the home of the woman's sister, also in Union City, the report says, adding that that home was first inspected before the children were allowed to go there.

The 31-year-old woman had been studying to be a corrections officer at the Bergen County Police Academy, but has been suspended from the academy, Hudson County Department of Corrections Director Oscar Aviles said.

The man and his daughter made their first court appearance on the charges yesterday in Central Judicial Processing court in Jersey City.

The woman was represented by attorney Brian Neary and her father was represented by attorney John Lynch. Neither chose to comment.