Antoine Jesper is Lead Criminalist with the Los Angeles Police Department's Scientific Investigations Division. He is relatively young and of African-American ancestry.

In January of 2002, he worked on the Arthur Delacroix murder. In particular, he identified a skateboard found in Nicholas Trent's home as a Boney Board. Later he found initials scratched into the surface of a skateboard, indicating that it had belonged to Delacroix. He provided information to Harry Bosch on the manufacturer of the skateboard and when it was produced.


Jesper was played by Anthony Alabi in the 2015 streaming series Bosch.


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