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EXHIBIT 4
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JOINT FILING AGREEMENT
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In accordance with Rule 13d-1(k) promulgated under the Securities Exchange
Act of 1934, as amended, the persons names below agree to the joint filing on
behalf of each of them a Statement on Schedule 13D, including amendments
thereto, relating to the common stock, no par value per share, of BI
Incorporated, and further agree that this Joint Filing Agreement be included as
an exhibit to all such joint filings. In evidence thereof, the undersigned,
being duly authorized, hereby execute this agreement as of the 11th day of
September, 2000.
Date: September 11, 2000 KBII Acquisition Company, Inc.
By: /s/ Christopher Lacovara
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Name: Christopher Lacovara
Title: Secretary
Date: September 11, 2000 KBII Holdings, Inc.
By: /s/ Christopher Lacovara
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Name: Christopher Lacovara
Title: Secretary
Date: September 11, 2000 KBII Acquisition Company, L.P.
By: KBII Management, LLC, its General Partner
By: /s/ Christopher Lacovara
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Name: Christopher Lacovara
Title: Secretary
Date: September 11, 2000 KBII Management, LLC
By: /s/ Christopher Lacovara
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Name: Christopher Lacovara
Title: Secretary
Date: September 11, 2000 /s/ James A. Kohlberg
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James A. Kohlberg
Date: September 11, 2000 /s/ David J. Hunter
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David J. Hunter
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Date: September 11, 2000 /s/ McKinley C. Edwards, Jr.
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McKinley C. Edwards, Jr.
Date: September 11, 2000 /s/ Jacqueline A. Chamberlin
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Jacqueline A. Chamberlin
Date: September 11, 2000 /s/ Steven P. Merrefield
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Steven P. Merrefield
Date: September 11, 2000 /s/ Jonathan M. Hinebauch
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Jonathan M. Hinebauch
