The court documents are similar to those filed earlier this week on behalf of Stepien. He, too, has been pursued by federal authorities as they investigate possible criminal wrongdoing.
Like Stepien, Kelly is relying largely on her right not to incriminate herself by giving information to the lawmakers. To do that, her lawyer, Michael Critchley, is asserting that she could be subject to a criminal prosecution. Critchley argued in the court filing that the right not to self-incriminate extends to documents as well as testimony, and that even confirming whether certain documents exist could subject her to prosecution.
More than a dozen other people and organizations close to Christie have complied with documents subpoenas from the legislative panel, which is sifting through thousands of pages of materials.
There has been no evidence directly linking Christie to the planning or execution of the plot.
Associated Press reporter Geoff Mulvihill in Haddonfield contributed to this report.
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