The corner of Gower and Carlos streets was dedicated to Officer Ian Campbell on Friday.
Campbell and his partner were kidnapped in 1963 by two small-time criminals who were stopped for making an illegal U turn. The officers were taken to an onion field in Bakersfield, where Campbell was shot in the face and his partner escaped.
Capt. Beatrice Girmala, commanding officer of the Hollywood Community Police Station, said the case proves "there is no such thing as a routine traffic stop."
Campbell's daughter, three years old at the time of her father's death, attended the ceremony.
Campbell was a bagpiper. Since his death, bagpipes have been played at every LAPD funeral.
The Associated Press contributed to this report.