---
aliases:
- Dexter Leitenen
category: Law Enforcement & Legal
relations:
- fn: 1
  role: Interim United States Attorney
  start: 1988-06-17
  type: head_of
  with: '[[U.S. Attorney''s Office for the Southern District of Florida]]'
summary: Assistant U.S. Attorney and former Green Beret, legal confidant to Allan
  Boyak before Boyak approached the FBI about Robert Booth Nichols, later Interim
  U.S. Attorney for the Southern District of Florida.
tags:
- Person
- Lawyer
- FBI
- LawEnforcement
updated: 2026-10-15
---

[Dexter Lehtinen](/people/dexter-lehtinen/) was an assistant [U.S. Attorney](/organizations/united-states-attorney/) and a close friend of [Allan Boyak](/people/allan-boyak/) from his Green Beret days. He later became the Miami [U.S. Attorney](/organizations/us-attorneys-office-for-the-southern-district-of-florida/). He was named Interim United States Attorney for the Southern District of Florida effective June 17, 1988.[^1] The Senate's 1992 report on [BCCI](/organizations/bank-of-credit-and-commerce-international/) calls him "the former U.S. Attorney for the Southern District of Florida, Dexter Lehtinen," among the critics of the Justice Department's handling of the bank.[^2] Boyak consulted with Lehtinen before going to the Los Angeles [FBI](/organizations/federal-bureau-of-investigation/) office with his suspicions about [Robert Booth Nichols](/people/robert-booth-nichols/)' activities.[^3]

[^1]: *United States Attorneys' Bulletin,* vol. 36, July 15, 1988, p. 166, "Personnel": Dexter Lehtinen took the oath of office, effective June 17, 1988, as Interim United States Attorney for the Southern District of Florida. https://www.justice.gov/sites/default/files/usao/legacy/2010/10/12/usab3607.pdf
[^2]: Senate Committee on Foreign Relations, Subcommittee on Terrorism, Narcotics and International Operations, *The BCCI Affair* (Kerry-Brown report), 1992, ch. 8 ("the former U.S. Attorney for the Southern District of Florida, Dexter Lehtinen"). https://irp.fas.org/congress/1992_rpt/bcci/08just.htm
[^3]: Seymour, Cheri. *The Last Circle: Danny Casolaro’s Investigation into the Octopus and the PROMIS Software Scandal*. First Edition. TrineDay, 2010 (the text spells the name "Leitenen").


---

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