A federal judge bars Kansas officials from enforcing Phill Kline's interpretation of a state law, which the attorney general said requires health care professionals to report under-age sexual activity.

On Monday, U.S. District Judge Thomas Marten issued a preliminary injunction in Wichita. He said he's convinced that even a limited breach of confidentiality concerning such unique and intimate information could have major implications for the well-being of minors.

Sex involving someone under 16 is illegal in Kansas, even if it involves willing same-age partners.

Last July, Kline issued an opinion on the 1982 Kansas reporting statue. He said it requires doctors, nurses, psychiatrists, social workers and others to report such illegal, under-age sex.