In the Tuesday ruling, Judge Charles F. Eick noted that Sheriff Alex Villanueva and Fire Chief Daryl Osby have "unique first-hand, non-repetitive knowledge" relevant to the case.
The basketball legend's widow is suing the county, claiming photos made at the crash site were shared by the sheriff's deputies and fire officials in settings irrelevant to the investigation, including a bar.
RELATED: Vanessa Bryant says she learned about Kobe's death from social media
Kobe Bryant and his daughter Gianna, 13, were among nine people killed when a helicopter crashed into a hillside in Calabasas, California, on January 26, 2020.
Bryant, in a deposition earlier this month, said she learned about her husband and daughter Gigi's deaths via social media notifications. According to a court filing, the county wants to compel the widow to undergo psychiatric exams to determine emotional distress over leaked photos.
The depositions will be limited to four hours each so as not to divert them from their official duties, according to the ruling.
RELATED: LA County wants Vanessa Bryant and others to take psychiatric exam ahead of trial
Villanueva "looks forward to offering his testimony and bringing clarity to the decisions he made which successfully led to no pictures allegedly taken ever seeing the light of day," department spokesperson John Satterfield said in a statement.
CNN has requested comment from Bryant's lawyer, the county's lawyer, and the fire department.