Answer: researches

AnswerCrossword Clue
RESEARCHESScrutinizes
RESEARCHESInvestigates systematically.
researchesActs or periods of such investigation
researchesThe systematic investigation into and study of materials and sources in order to establish facts and reach new conclusions
researchesRESEARCH, to investigate thoroughly
researchesEngaged in or intended for use in such investigation and discovery