The results of a formal law-enforcement investigation into whether Barack Obama is eligible to be president of the United States could come as a "shock", according to a tea-party group in Arizona, Sheriff Joe Arpaio said. Speaking to a tea-party group in Arizona, Arpaio said, "I can't tell you everything, but there could be a shock there somewhere that my guys came up with. I can't talk too much about it. It's in the process." WND previously has reported that Arpaio has constituted a special five-member law enforcement posse to investigate allegations brought by members of the Surprize, Arizona Tea Party, that "the birth certificate released to the public April 27 might be a forgery". The posse, assembled under the authority of Arpaio's office, consists of three former law enforcement officers and two retired attorneys with law enforcement experience. Members have been examining evidence since September concerning Obama's eligibility to be president under Article 2, Section 1 of the Constitution, which requires a president to be a natural-born citizen. He referenced disputes over the Social Security number attributed to the president, and said, "There are a couple of things you and nobody else here knows anything about yet, that could be a little bit exciting."