The search giant objects to consultants involved with the investigation, who used to work for NewsCorp and Microsoft.
Google says it wants to keep its confidential information from reaching rivals during a high-profile antitrust investigation by state attorneys general. The company on Thursday filed a motion with a Texas court, protesting the hiring of two consultants who had previously worked for Google foes including NewsCorp and Microsoft.
In September, Texas Attorney General Ken Paxton announced an antitrust probe into Google's massive digital advertising business. The investigation has the participation of AGs from 48 states, the District of Columbia and Puerto Rico. As part of the probe Paxton's office last month sent Google a civil investigative demand, asking for key information about its ad operation and data collection policies.
But Google is objecting to some of the consultants who would be working on the probe because sensitive data "could be inappropriately disclosed to and used by its adversaries," Google said in the motion.
"We've provided millions of pages of documents in response to regulatory inquiries, and we're committed to cooperating," a Google spokesman said. "But this is an extraordinarily irregular arrangement and it's only fair to have assurances that our confidential business information won't be shared with competitors or vocal complainants."
Google specifically protested the involvement of Cristina Caffara, a vice president at Charles River Associates, who has worked for NewsCorp, Microsoft, and Google's Russian search rival Yandex. Caffarra "has widely marketed her anti-Google experience," Google wrote in its motion. The company also called out the hiring of Eugene Burrus, an advisor at McKinsey and Co. who spent 15 years at Microsoft as assistant general counsel.
Caffara, Burrus and the Texas attorney general's office didn't immediately respond to requests for comment.
Aside from the states antitrust probe, Google is also under scrutiny from federal regulators. Google in July acknowledged that it was under investigation by the Justice Department.