MONTGOMERY, Ala. — Gov. Robert Bentley engaged in an “inappropriate relationship” with his chief adviser, then used intimidation tactics and deployed state law enforcement officials in an effort to cover it up, according to a bruising report released Friday in support of the effort to impeach him.

The report also claims that the second-term governor tried to pin nonexistent crimes on a top law enforcement official.

The release of the 131-page report by a special counsel to the state House Judiciary Committee is almost certain to further imperil Mr. Bentley, an avuncular physician and former Sunday school teacher. Mr. Bentley, a Republican, has vowed to fight to keep his office despite a steady drip of embarrassing and sometimes salacious details that have fueled a scandal that has embarrassed this conservative state and all but consumed its political culture for the last year.

Despite mounting calls from members of his own party that he step down, the governor won a significant battle Friday afternoon when a local judge granted a 10-day temporary restraining order Mr. Bentley had sought. The order effectively blocks impeachment hearings that were set to begin Monday in the Legislature, which is dominated by Mr. Bentley’s own party.