The people behind the BBC series “Doctor Who” have got the California Federal Court involved as they seek to find out who leaked footage from the show’s upcoming season.

“BBC Studios, the company’s production and commercial arm, has filed an application in the U.S. court, to compel California-based website Tapatalk to disclose who leaked a 53-second clip of the new season,” Deadline reports. “The leak is particularly significant as it is the first season starring the show’s first female Doctor, played by ‘Broadchurch’ actor Jodie Whittaker. The short clip, as well as two still images, were shared on the site last week.”

The report notes that the BBC is not accusing Tapatalk of wrongdoing, noting that users who upload copyrighted materials are in violation of the site’s terms and conditions.

The report quotes a spokesman for BBC Studios saying: “We will strive to protect our program-makers, audiences and licence fee payers from any breaches of security — ensuring ‘Doctor Who’ fans enjoy the final and fully completed version of the episode when it premieres.”

Deadline notes that the new 10-episode season is scheduled to premiere this fall with an hour-long opener.