Criminal Investigation - CDI 1 Week 9 PDF
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This document details the various techniques used in criminal investigations, including associative evidence, tracing evidence, corpus delicti evidence, and sworn statements. It also describes surveillance and shadowing techniques, and the qualities a surveillance officer requires. The techniques described can be applied to various types of crimes.
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**Associative Evidence** -- the physical evidence found at the scene during the course investigation which could link the identity by means of clue material, personal property, or the characteristics pattern of procedure deducted from the arrangement. **Tracing Evidence** -- these are physical evid...
**Associative Evidence** -- the physical evidence found at the scene during the course investigation which could link the identity by means of clue material, personal property, or the characteristics pattern of procedure deducted from the arrangement. **Tracing Evidence** -- these are physical evidence which may assist the investigating officer in locating the suspect. **Corpus Delicti Evidence** -- These are objects or substances which may be parts of the body of the crime, of the victim, of the suspect/subject, guns. Knife, slug recovered from the cadaver during the autopsy, body fluid, blood, finger prints, footprints, etc. **Sworn Statement** \- Written version of the interview and interrogation. \- A sworn statement is such a part and parcel of ordinary investigation, that detective who does not know how to take statement is only a half-cooked investigator. \- A sworn statement maybe broken down into two. 1. **The Heading** \- In practice, it is typed in capital letter at the upper portion of the sworn statement. It contains a) the full name and the middle of the person giving the statement; b) the official designation of name of the investigator; c) the person in the presence of whom, it any, the statement is given; d) the date, time and place where the sworn statement is given. **2. The Initial Question** \- For the suspect, it contains warnings and reminders of his legal rights and question if he is still willing to give a free and voluntary statement. ** ** **The Second Phase of Criminal Investigation** ** ** **TRACE AND LOCATE THE CRIMINAL** The second phase of crime investigation is concerned with locating and apprehending the offender. This is not only frustrating but dangerous on the part of the investigator. Locating and apprehending the suspects/s can be done through the use of informants, conducting surveillance and undercover assignments. Surveillance is a discreet observation of place, persons, and vehicle for the purpose of obtaining information concerning the identities or activities of the subjects. It is the clandestine form of investigation which consists of keeping any person, places, or other physical and objects can be closely watch but are generally incidental to the primary interest of seeking information about people. **Objectives of Surveillance** a. To detect criminal activities b. To discover the identity of the person who frequent the establishments and determine their relationship c. To discern the habit of a person who lives in or frequent the place d. To obtain the evidence of a crime or to prevent the commission of a crime ** ** ** ** **Shadowing or Tailing** -- It is the act of following the person. Its objectives are; a. To detect evidence of criminal activities b. To establish the associations of a suspect c. To find a wanted a person d. To protect a witness [General Personnel Qualification] The SURVEILLANT needs to be patient, resourceful, versatile and alert. He should have the complete knowledge of the investigation in order that he may have interest in the action of the subject. He needs to have self-control **[General Surveillance Procedure:]** 1) Identification of the subject 2) Dress of the Surveillant 3) Precautions a. Do not make an abrupt and unnatural move. b. Do not use theatrical disguised. c. Never stare directly at the subject d. Never look directly at the subject's eye. e. Walk near the cub to avoid the possibility of attach from doorways and alleys. f. Exercise extreme caution in dark alleys. g. Never speak/appear to recognize other surveillant unless the mission is complete. h. Surveillant must conquer the tendency to believe them made when the subject glances in their direction several time.