[ krim-uh-nl-is-tiks ]
/ ˌkrɪm ə nlˈɪs tɪks /

noun (used with a singular verb)

the scientific study and evaluation of physical evidence in the commission of crimes.
the science dealing with the detection of crime and the apprehension of criminals.

Origin of criminalistics

First recorded in 1945–50; criminalist + -ics Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019