Paul Dobson's participation in the online video produced by Brave New Foundation was done without supervisor approval and the case is under final review, The Arizona Republic reported Wednesday.
The Squaw Peak Precinct patrolman, who has 20 years on the force, allegedly was the only Arizona resident to respond to the foundation's online request for interviews impacted by the new law.
He recorded his views from his Phoenix home via Skype and posted it to the group's Facebook page, the Republic said.
"This law will make me feel like a Nazi out there," Dobson said. "I have a great deal of contempt for it; I'm very emotional about it."
Dobson also characterized the law as racist, the newspaper said.
Phoenix Police Chief Jack Harris previously testified on SB 1070 as part of a federal review of pending lawsuits, and the police union contends any discipline against Dobson would constitute a double standard in light of Harris' testimony.