Noun
One who searches diligently into a subject.
Source: Webster's dictionaryWhen the empirical investigator glories in his refusal to go beyond the specialized observation dictated by the traditions of his discipline, be they ever so inclusive, he is making a virtue out of a defense mechanism which insures him against questioning his presuppositions. Karl Mannheim
The history of science knows scores of instances where an investigator was in the possession of all the important facts for a new theory but simply failed to ask the right questions. Ernst Mayr
The researcher hoping to break new ground in the theory of experimental design should involve himself in the design of actual experiments. The investigator who hopes to revolutionize decision theory should observe and take part in the making of important decisions. George E. P. Box
An investigator starts research in a new field with faith, a foggy idea, and a few wild experiments. Eventually the interplay of negative and positive results guides the work. By the time the research is completed, he or she knows how it should have been started and conducted. Donald Cram
I was employed as an investigator and my particular team, we were investigating the role of the business community in the genocide and we identified a bunch of leaders of the business community and I investigated two people. Tony Greig
The investigator should have a robust faith - and yet not believe. Claude Bernard