Ms. Palin has denied that anyone told Mr. Monegan to dismiss Mr. Wooten, or that the commissioner’s ouster had anything to do with the trooper. But an examination of the case, based on interviews with Mr. Monegan and several top aides, indicates that, to a far greater degree than was previously known, the governor, her husband and her administration pressed the commissioner and his staff to get Mr. Wooten off the force, though without directly ordering it.

In all, the commissioner and his aides were contacted about Mr. Wooten three dozen times over 19 months by the governor, her husband and seven administration officials, interviews and documents show.