CHAPTER 3 Flashcards
What are the tool’s or I’s of investigation?
1.Information
2.Interview/Interrogation
3.Instrumentation
To achieve the goals of criminal investigation, the investigator must know how to use the available resources or tools. There are indispensable tools that can be used by the criminal investigators to successfully solve criminal cases.
TOOLS OF CRIMINAL INVESTIGATION
is the knowledge or facts which the investigator had gathered or acquired from persons or documents, which are pertinent or relevant concerning the commission of the crime or criminal activities.
INFORMATION
Any written or documented statements of persons who possess relevant knowledge concerning a crime. It may include any form of documented data such as directory, file, audio/video tapes and written testimonies
TRACES OF INFORMATION
Common traces of info
• Criminal complaint
• Information
• Depositions
• News article
To whom, where or which information are derived or developed.
SOURCES OF INFORMATION
General categories:
• Places
• Things
• people
CLASSIFICATION OF INFORMATION AS TO SOURCES:
a. REGULAR SOURCES
b. CULTIVATED SOURCES
c. GRAPEVINES SOURCES
What are the methods of obtaining information?
1.Overt
2.Covert
The visible way of obtaining information like conducting interview, patrol, crime scene search, regular performance of police activities and custodial interrogation.
Overt
The secret way of obtaining information
Covert
What are the TYPES OF INFORMATION?
1.Sensory Form
2.Written Form
3.Physical Form
the outward manifestations of a criminal event that can be perceived by our five senses – eyes, ears, nose, tongue and hands.
Sensory Form
A criminal act may also provide information is a written form like receipts from the motel, food and drinks in the pocket of the suspect.
Written Form
The information may actually be in a real form – meaning the failure to retrieve it or receive it at the right time will be useless.
Physical Form
