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QUEST REVIEW CENTER1550 Espana Blvd. Cor. Lacson Ave., Sampaloc, ManilaNOTES ON CRIME DETECTION AND INVESTIGATIONCDI-1: FUNDAMENTALS OF CRIMINAL INVESTIGATIONCRIMINAL INVESTIGATION – is an art which deals with the identity and location of theoffender and provides evidence of guilt through criminal proceedings.INVESTIGATION DEFINED:The collection of facts to accomplish a three-fold aim:a.to identify the guilty party;b.to locate the guilty party; and c.to provide evidence of his guilt.PRIMARY JOB OF AN INVESTIGATORThe primary job of the investigator is to discover whether or not an offense has beencommitted under the law, after determining what specific offense has been committed, he mustdiscover how it was committed, by whom, where it was committed, when and why it wascommitted (Cardinal points of Investigation 5W’s and 1H).SIX CARDINAL POINTS OF INVESTIGATION WHATspecific offense has been committed?Nature of crimeWHEREcrime was committed?Place or locationWHEN it was committed?Time and dateWHOM it was committed?Persons/s involvedWHY it was committed?Reason or motive of Committing the crime HOWit was committed?Manner, method or modusoperandiQUALITIES OF A GOOD INVESTIGATOR1.Perseverance 2.Intelligence 3.Honest 4.Understanding of the people and environment 5.Keen power of observation TRAININGTraining, as one of the foundations of investigation, is concededly a vital ingredient in thecreation of a total investigator. Experience alone does not make one good investigator. Manywho had been hostage to this notion often ended in jeopardy. The ideal conjugal partnership istraining and experience. The fusion of the best training and vast experience is a formidableforce that can threat even the most sophisticated technology and syndicated crimes. Thenecessity of training as a purveyor of change builds the investigator’s confidence. It widens hisvision for professional growth and strengthens his will to survive and prevail over crises.
The National Forensic Science Training Institute (NFSTI) under the Philippine PublicSafety College is the institution that trains uniformed personnel of the Philippine National Policeto become a certified investigator. THREE TOOLS OF INVESTIGATION 1.INFORMATIONIt is the knowledge/data which an investigator acquired from other persons and records. Classes of Information2.INTERVIEW AND INTERROGATIONINTERVIEW– Is a conversation with a purpose, motivated by a desire to obtain certaininformation from the person being interviewed as to what was done, seen, felt, heard, tasted,smell or known.