---
category: PROMIS Scandal
summary: Todd accompanied Sean McDade during his secret entry into the United States
  in February 2000, where they met with Cheri Seymour, the author of *The Last Circle*.
tags:
- Person
- PROMIS
---

[Sue Todd](/people/sue-todd/) is a Police Detective from Hercules, California. She became involved in the investigation surrounding the [PROMIS Software Scandal](/events/promis-software-scandal/) and its broader implications, particularly through her collaboration with [RCMP](/organizations/royal-canadian-mounted-police/) national security investigator [Sean McDade](/people/sean-mcdade/).[1]

Todd accompanied [Sean McDade](/people/sean-mcdade/) during his secret entry into the [United States](/places/united-states/) in February 2000, where they met with [Cheri Seymour](/people/cheri-seymour/), the author of *The Last Circle*. Their collaboration stemmed from a shared "source" and Todd's own investigation into a three-year-old double homicide that she believed was connected to the [PROMIS](/programs/promis/) case. During their meeting with Seymour, Todd and McDade were armed with 9mm police guns, indicating the serious nature of their inquiry.[1]

She assisted [Sean McDade](/people/sean-mcdade/) in his extensive probe, which involved interviewing former investigators, witnesses, and law enforcement personnel across the [United States](/places/united-states/). Todd was also a point of contact for [Sean McDade](/people/sean-mcdade/) when he found himself targeted by [ECHELON](/programs/echelon/) technology during his investigation, forcing him to take extraordinary measures to communicate securely.[1]

Despite the exposure of [Sean McDade](/people/sean-mcdade/)'s investigation in the *Toronto Star* in August 2000, Todd indicated that he ultimately returned to police work in his hometown, suggesting a continued commitment to law enforcement despite the challenges faced during the [PROMIS](/programs/promis/) investigation.[1]


[1] Seymour, Cheri. *The Last Circle: Danny Casolaro’s Investigation into the Octopus and the PROMIS Software Scandal*. First Edition. TrineDay, 2010.