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Scenario 5: improvised explosive device material is found in an apartment. The only witness to activity there is an alcoholic in withdrawal.



Fire and rescue personnel respond to an explosion and subsequent fire in an apartment building near an industrial section of the city. Arson arson, at common law, the malicious and willful burning of the house of another. Originally, it was an offense against the security of habitation rather than against property rights.  investigators determine the cause and origin to be detonation of an improvised explosive device Noun 1. improvised explosive device - an explosive device that is improvised
I.E.D., IED

explosive device - device that bursts with sudden violence from internal energy
 (IED Noun 1. IED - an explosive device that is improvised
I.E.D., improvised explosive device

explosive device - device that bursts with sudden violence from internal energy
) in a backpack near or on the one deceased victim. Investigators found evidence that the detonated IED, and other unrecovered IED's, were constructed in the apartment. Documents have also been recovered that indicate that the resident of the apartment recently received inpatient inpatient /in·pa·tient/ (in´pa-shent) a patient who comes to a hospital or other health care facility for diagnosis or treatment that requires an overnight stay.

in·pa·tient
n.
 treatment at a mental health facility in a neighboring neigh·bor  
n.
1. One who lives near or next to another.

2. A person, place, or thing adjacent to or located near another.

3. A fellow human.

4. Used as a form of familiar address.

v.
 state. A neighborhood canvas located one witness who observed several males in their early- to mid-20's carrying backpacks leave the residence yesterday. The witness could not further describe the individuals, stating that he only observed the people for a short period of time and did not pay close attention to them. Their automobile may have been parked on the street but the witness cannot be certain. The witness lives on the street and is in alcohol withdrawal, having been unable to obtain alcohol in the past 48 hours.

Problem: How can law enforcement facilitate good reporting from individual citizens, including those who might usually provide unreliable information (e.g., distressed homeless persons, people who were inebriated inebriated (i·nēˑ·brē·āˈ·td),
adj intoxicated.
 when they saw the event)?

Strategies: Memories often exhibit what is called "state dependency." That is, if an event is perceived while someone is under the influence of a drug (e.g., alcohol), then it is remembered better if the recall occurs under the same state (that is, while drinking). A similar effect sometimes has been found to operate for moods--that is, memories also are recalled better if the person is in the same mood they were in when they acquired the memory. This poses a potential problem for effectively interviewing people with histories of the abuse of alcohol or other drugs.

Problem: Can we identify the likely characteristics of suicide bombers in the Middle East at present, ask how many of the same characteristics (especially, support structures) might or do exist in the United States United States, officially United States of America, republic (2005 est. pop. 295,734,000), 3,539,227 sq mi (9,166,598 sq km), North America. The United States is the world's third largest country in population and the fourth largest country in area. , and use these characteristics to identify people who might be considered at risk? Similarly, can we use what is known about the men who engaged in the attacks on the United States on 9/11, to offer a likely description of such a terrorist?

Strategies: Data mining techniques might be useful here. The data mining technique is useful when someone is confronted with a huge collection of individual items (e.g., telephone call narratives, case histories, medical histories, indices of aberrant behavior) and needs these items be prioritized according to according to
prep.
1. As stated or indicated by; on the authority of: according to historians.

2. In keeping with: according to instructions.

3.
 which should be pursued thoroughly. It also allows the user to find patterns of behavior that are almost impossible for the human observer to perceive. Importantly, then, this is not just a technique that is faster than a human. It is a technique that allows a human to view aspects of a large data set that they otherwise would not be able to see, and to discover interesting associations among data in the database. (10) (Some examples of this technique are in Appendix 5, "Data Mining Methodology.")

Problem: How can law enforcement create standard operating procedures that could be provided to local and regional offices to use when an event like that described in the scenario occurs?

Strategies: Most real-life decisions involve multiple decision stages--that is, a sequence of actions that are taken over time. Each action results in some consequence, which then affects the next action. During the past 30 years, decision researchers have learned a great deal about the basic principles of multistage decisions, which are represented in terms of a decision tree. (An example of a decision tree is provided in Appendix 4, Decision Tree Methodology.) The creation of a decision tree requires the collaboration of a technical advisor with those who are the recipients of the incoming information (and will use the decision tree). However, once such a tree is established, using it requires relatively little technical skill, so that it can be broadly applied.

It is important to note that decision trees, like data mining techniques, serve only to report to the user, who then makes a final decision regarding action and follow-up. It is important also to recognize that the use of these techniques can be effective while maintaining much of the privacy of the person or persons who supplied the information, thereby not violating civil liberties of the populace at large and protecting important sources of information.

Implications for practice, training and research

This scenario is an instance where it appears as if the social sciences have the necessary and useful tools, and law enforcement and intelligence have the data. Research is needed on how to:

* Provide social scientists with the data without compromising security, and

* Implement these research tools within the local and national cultures of law enforcement and intelligence agencies.

Social scientists in Israel have collected data pertinent to the Palestinian suicide bombers. (11) Research in the United States is needed to understand whether similar conditions exists in this country, and whether such conditions might develop in the future. Research also is needed as to whether the 19 attackers of September 11 shared characteristics with the Palestinian suicide bombers.

(10) Data mining comes from analyses of self-organizing map This article appears to contradict another article. Please see discussion on the linked talk page.
A self-organizing map (SOM) is a type of artificial neural network that is trained using unsupervised learning to produce low-dimensional representation of the training
 (SOM) networks, one of the most important network architectures developed during the 1980s. The main function of SOM networks is to map the input data from an n-dimensional space to a lower dimensional (usually one or two-dimensional) plot while maintaining the original topological to·pol·o·gy  
n. pl. to·pol·o·gies
1. Topographic study of a given place, especially the history of a region as indicated by its topography.

2.
 relations. Therefore, it can be viewed as an analog of factor analysis.

(11) McCauley, C. (in press). Understanding the 9/11 perpetrators: crazy, lost in hate, or martyred? In N. Matuszak (Ed.), History behind the headlines, Vol. 5. Farmington Place, MI: Gale Publishing Group.
COPYRIGHT 2002 Federal Bureau of Investigation at www.fbi.gov
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2002 Gale, Cengage Learning. All rights reserved.

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Publication:Countering Terrorism: Integration of Practice and Theory
Geographic Code:1USA
Date:Feb 28, 2002
Words:965
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