The application of scientific methods and knowledge in the investigation of a crime is called what kind of science

Forensic science or criminalistics

Explanation:Forensic science is referred to as a branch of science that deals with the investigation. it consists of all the methods that need to be initiated to obtain all information or evidence that generated at the criminal site.

If it is needed then it also introduces the reconstruction of the full crime scene by using obtained evidence. The technique used in forensic science is Hair analysis, fingerprint analysis, luminol spray, etc.

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.