PORTLAND, Ore. -- A Portland man said Monday that his 12-year-old son brought home adult-themed Japanese books from a Multnomah County Library.

The Manga series of books are kept in the adult section of some Multnomah County libraries. The books include animated pictures of young women and girls in bondage, being raped and abused.

Rozz Rezabek found the books in his son's room. He said his son checked out the books without anyone questioning him.

Rezabek said he went to the library in search of answers, but he said the employees defended the material.

"If you have an adult section, you should enforce it," Rezabek said. "He's 12 years old. They say right on the cover of all these books: 'mature, ages 18 plus.'"

A library spokeswoman said the Manga collection is available to everyone. She said it's up to parents to monitor the books their children are reading.

The Multnomah County Library allows patrons to file a statement of concern with the library.

Rezabek said he may talk to an attorney about the matter.

Father Says Boy Brought Home Inappropriate Comic From Library