Synonyms and related words :
amassing evidence, analysis, assay, beat the bushes, bring to test, burrow, check out, close inquiry, confirm, cut and try, delve, delve into, delving, department of investigation, detection, detective work, dig, dig into, digging, enquiry, essay, examination, examine, exhaustive study, experiment, experimentation, exploration, explore, fact-finding, forage, frisk, give a try, give a tryout, go through, have a go, hearing, hunt, indagation, inquest, inquire into, inquiry, inquisition, inspect, inspection, investigate, investigation, investigative bureau, legislative investigation, legwork, look around, look round, look through, nose around, perscrutation, play around with, poke, poke around, practice upon, probe, probing, prove, pry, put to trial, quest, road-test, root, run a sample, sample, scrutinize, scrutiny, search, search through, shake down, sifting, sleuthing, smell around, study, substantiate, taste, test, try, try it on, try out, validate, verify, witch-hunt