From the AZCentral.com story:
Phoenix New Times owners Michael Lacey and Jim Larkin were arrested Thursday night by Maricopa County sheriff's deputies on charges of revealing grand jury information, a misdemeanor.
The charges stem from a story published under their byline in the Thursday edition of New Times, in which they describe a subpoena the paper reportedly received from a grand jury convened by the Maricopa County Attorney's Office.
The alternative weekly newspaper, in its cover story, said the subpoena was part of an investigation orchestrated to get back at its reporters and the critical stories they wrote of County Attorney Andrew Thomas' political ally Sheriff Joe Arpaio.
The scope of the subpoena is unusually broad: It not only demands information from the reporters but also information about all the online readers of the publication since Jan. 1, 2004, including their Internet domain names and browsers and what other Web sites they visited before reading New Times."
Link to Original Source