The three methods of investigation are document analysis, interview and observation. This will be determined by the particular type of investigation.
the 3 tools investigation the interrogat
the 3 tools investigation the interrogat
three tools criminalinvestigation
The broad basis of an investigation is to either prove or disprove the facts - be they criminal, civil, scientific, and so on.
theory
theory
theory
theory
theory
theory
theory
theory
theory