Investigators say aides to Pennsylvania's top prosecutor sent sensitive emails about news coverage of her office to her personal accounts and that prevented them from seeing many of her responses.

Kane was charged this month with obstruction and conspiracy for allegedly leaking grand jury material to a Philadelphia newspaper and then lying about it. Kane has maintained her innocence.

Investigators say in a request for a search warrant that the emails included a proposed response to a Philadelphia Inquirer reporter's questions on a critical article.

The search warrant request was obtained by The Associated Press on Wednesday.

A spokesman says he would check the attorney general's office's policy on using private email accounts to conduct official business.

Chuck Ardo says he is sure Kane has communications with all kinds of people through a variety of means.