The Federal Bureau of Investigation’s Control Over Weapons and Laptop Computers Follow-Up Audit

Audit Report 07-18
February 2007
Office of the Inspector General


Appendix II
Sampling Design

The FBI database we tested contained 52,263 weapons and 26,166 laptops assigned to all FBI offices and officials located around the country and abroad. Analysis of the distribution of weapons and laptops revealed that more than half of the items in the universe were assigned to seven offices. Specifically, 52 percent of all weapons and 54 percent of all laptops were assigned to: (1) FBI headquarters, (2) the FBI Training Academy at Quantico, Virginia, (3) the Chicago Field Office, (4) the Los Angeles Field Office, (5) the Miami Field Office, (6) the New York City Field Office, and (7) the Washington, D.C. Field Office.

Seven Offices Reviewed
February 1, 2002, through September 30, 2005

Map of United States highlighting the 7 offices reviewed.
Source: OIG analysis of FBI data

To provide effective coverage and efficient testing of the items, a stratified random sample design was selected, as shown in the table below. A total sample of 497 weapons and 477 laptops were tested.

Sample of Weapons and Laptop Computers Tested
Location Weapons Laptops
Number
Tested
Percent
Tested
Number
Tested
Percent
Tested

Quantico, VA

212

1.17%

187

3.24%

FBI Headquarters

48

2.92%

161

3.16%

Chicago

36

3.17%

16

4.03%

Los Angeles

55

3.18%

29

4.02%

Miami

33

3.20%

18

4.00%

New York

69

3.17%

42

4.03%

Washington, D.C.

44

3.18%

24

3.99%

Total

497

 

477

 
Source: Property Management Application (PMA) System



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