fundamental of criminal investigation

1. FUNDAMENTALS OF
CRIMINAL INVESTIGATION
AND INTELLIGENCE
By Harry L. Caisip, RCrim

2. Assignment of Duties of
Responding Officers
Part 4
Cardinal Points of
Investigation
Part 2
Suggested Procedure of
Crime Response
Part 3
Contents
Criminal Investigation
Part 1

3. Criminal Investigation
As an ART
not governed by rigid
rules or fixed legal
procedures
deals with the identity, location and arrest of a person who
committed a particular crime and concurrently includes
identification, collection, preservation and evaluation of evidence
for the purpose of bringing criminal offender to the bar of justice.
As a Science
involves the application
of knowledge of
forensic sciences

4. 3 FOLD AIMS
• To identify the guilt
party
• To locate the guilt
party
• To provide evidence
of his guilt
1. INFORMATION
2. INTERVIEW/INTERROGATION
3. INSTRUMENTATION
TOOLS OF CRIMINAL
INVESTIGATION
Regular Sources
Cultivated Sources
Grapevines Sources

5. WHAT
nature of the
crime committed
Investigation must seek to establish the six (6) cardinal point of investigation
Cardinal Points of Criminal Investigation
WHO WHERE WHEN WHY HOW
persons involved
in the crime
the place or
location of the
crime
committed
specific
duration of the
crime
committed
reason or
motive of
committing the
crime
manner, method,
or modus
operandi of the
crime

6. The Crime Scene – This is the place where the crime is committed and physical
evidence are evident therein.
♦ Crime Scene is said to be the “TREASURE ISLAND”

7. Suggested Procedure of Crime Response
1. The Means of Reporting – Refers to the method of reporting the crime
whether it reached the station through phone call, personal appearance or other
means
2. The Time of Report – The exact time of the report to include minute must
be recorded
3. The Receiver of Report – The identity of the one who received the report
in the station must be properly noted.
4. The Time of Dispatch – The time when the Desk Officer dispatches the
investigator is also recorded, together with the names of the investigator, with the
means of transportation, either by mobile car, taxi or other means.

8. 5. The Time of Arrival – the time of arrival of the investigating team at the crime scene
should be noted. The situation in the area should also be noted whether it is windy,
rainy, sunny or any other description of the climate in the immediate area.
INITIAL STEPS IN CRIMINAL INVESTIGATION
1. Cordon the crime scene
2. Identify and retain the person who first notified the police for questioning
3. Determine the suspect by direct inquiry or observation.
4. Detain all people present at the crime scene.
5. Safeguard the area by issuing appropriate orders.
6. Permit only authorized persons to enter the area.
7. Separate the witness in order to obtain independent statement.
8. Do not touch or move any object found in the scene.
9. Summon assistance from responsible if necessary
10. The team leader assigns the duties of the searchers if assistants are
present.

9. ASSIGNEMENT OF DUTIES OF RESPONDING OFFICERS
1. OIC/TEAM LEADER – The one who directs the processing of the crime
scene.
2. ASSITANT TL – The one who implements or executes the order coming
from his superior.
3. PHOTOGRAPHER – Takes photograph of all pieces of evidence that are
relevant to the crime committed.
PROCEDURE in PHOTOGRAPHING the CRIME SCENE
1. General View or Long-Range, taking an over all view of the scene of the
crime. It shows direction and location of the crime scene.
2. Medium view or Mid-Range, is the taking of the photograph of the scene
of the crime by dividing it into section. This view will best view the nature of the
crime

10. 3. Close- up View/Range, is the taking of individual photograph of the evidence at
the scene of the crime. It is design to show the details of the crime.

11. 4. SKETCHER – Makes sketches of the immediate background and inside the scene
of the crime.

12. 5. Master Note Taker – The one who writes down in short hand all
observations at the crime scene such as: weather condition, time of
dispatch and time of arrival at the scene and other relevant data that’s
should be taken down note.
6. Evidence Man - The one in charge in the collection, preservation,
tagging of the articles of evidence found at the crime scene.
7. Measurer – Makes all relevant measurements of the scene such as:
the distance of the body of the victim to the firearm used; in motor
vehicle collision, the distances of the two vehicles to the points of
references.

13. GOLDEN RULE IN CRIMINAL INVESTIGATION
“Do not touch, alter, move, or transfer any object
at the crime scene unless it is properly marked,
measured, sketched and/or photograph” The purpose
of this rule is to avoid the mutilation, alteration and
contamination (MAC) of the physical evidences found
at the crime scene.

14. Thank you for listening Future
criminologist!