LOS ANGELES — Sheriff’s investigators are to offer evidence to prosecutors that could lead to a manslaughter charge against Caitlyn Jenner for her role in a fatal car crash on the Pacific Coast Highway in Malibu, Calif., in February.

A Los Angeles County Sheriff’s Department spokeswoman, Nicole Nishida, said Thursday that investigators had found that Ms. Jenner was driving in a manner “unsafe for the prevailing road conditions” when her sport utility vehicle rear-ended a Lexus, pushing it into traffic.

Ms. Nishida said the case would be presented for review next week. The district attorney will determine what charges, if any, Ms. Jenner will ultimately face.