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Police: Criminal Investigations - Criminal Investigation Defined

information perpetrator crime process

An investigation refers to the process of collecting information in order to reach some goal; for example, collecting information about the reliability and performance of a vehicle prior to purchase in order to enhance the likelihood of buying a good car. Applied to the criminal realm, a criminal investigation refers to the process of collecting information (or evidence) about a crime in order to: (1) determine if a crime has been committed; (2) identify the perpetrator; (3) apprehend the perpetrator; and (4) provide evidence to support a conviction in court. If the first three objectives are successfully attained, then the crime can be said to be solved. Several other outcomes such as recovering stolen property, deterring individuals from engaging in criminal behaviors, and satisfying crime victims have also been associated with the process.

A useful perspective on the criminal investigation process is provided by information theory (Willmer). According to information theory, the criminal investigation process resembles a battle between the police and the perpetrator over crime-related information. In committing the crime, the offender emits "signals," or leaves behind information of various sorts (fingerprints, eyewitness descriptions, murder weapon, etc.), which the police attempt to collect through investigative activities. If the perpetrator is able to minimize the amount of information available for the police to collect, or if the police are unable to recognize the information left behind, then the perpetrator will not be apprehended and therefore, the perpetrator will win the battle. If the police are able to collect a significant number of signals from the perpetrator, then the perpetrator will be identified and apprehended, and the police win. This perspective clearly underscores the importance of information in a criminal investigation.

The major problem for the police in conducting a criminal investigation is that not only is there potentially massive amounts of information available, but the relevance of the information is often unknown, the information is often incomplete, and the information is often inaccurate. Further, to be useful in proving guilt in court (where beyond a reasonable doubt is the standard), the evidence must have certain other qualities, and certain rules and procedures must be followed in collecting the evidence.

Police: Criminal Investigations - The Structure Of Criminal Investigations [next]

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over 5 years ago

SEARCH AND GIVE RESULTS FOR CRIMINALS IN MACHAKOS
SECTION 45
KARIOBANGI
MUMBUNI
EASTLEIGH
UPTO 2014

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over 1 year ago

Police: Criminal Investigations - Criminal Investigation Defined

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about 2 years ago

i like it promise i want also investigate some criminal!!!

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over 1 year ago

How am I suppose to cite this in my research paper if there is no author's name and the year of publication. but I like the article is very interesting.

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almost 4 years ago

Send more information on Criminal Investigations.Registered to study in 2015 but is invited for interview for assistant investigator.Just want to read through to have basic understanding.



Many thanks

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about 2 years ago

the defination of investigation is superb but how about the theories and concepts of investigations?

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about 4 years ago

The definition of what is a police investigation is correct at 100%. It is well explicit and very clear and easily understandable. Great job. Thanks.

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over 8 years ago

when a fair investigation is being done dont they talk and see any evidence the person being charged or accused not just one side if u feel it is not fair and u have a public defender and she is not helping u prove it never happened and u are told this is best for u and the lawyer lies to u to take this plea what can u do ?

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about 1 year ago

I was wondering if Jrank has any complete criminal investigation files with evidence (either photos or documents) shown that I could use for a school project? If you do have some could you please email them to me at the email above?

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over 1 year ago

I want to learn about criminal investigation system if you get my message please call me again

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over 3 years ago

plz help me with more info on investigation of a crime

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about 7 years ago

The defination very comprehensive and detailed hence very good.

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24 days ago

how does the law look at the man who caught a thief who stole his property and others people after when he has make former complaint to the police after which through information he apprehend the thief suspect and recover the property stolen from him and let go the thief suspect without taking to the police for further investigations