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Hacker News
5/10

TillerScreen

A risk-management dashboard for fire chiefs of volunteer and small combination departments that flags new members whose profile matches the documented arsonist pattern and tracks the early-warning signs.

Target user

fire chiefs and training officers of volunteer and small combination fire departments with no HR department

Features
  • volunteer application reviewer that scores risk against the published arsonist profile (recent join, age, prior complaints, training gaps)
  • an anonymous tip line that auto-correlates incoming reports with previously-flagged members and stations
  • incident correlation across nearby departments so a pattern in one town surfaces in another within weeks
  • a quarterly 'training and recognition' reminder so chiefs can intervene before boredom sets in, which the article names as a trigger
Why now

Roughly 100 firefighter arsonists are convicted in North America every year, all of them serial; records don't differentiate firefighters from other arsonists so the problem is invisible until a town makes the news — a tool that surfaces the pattern across departments would be the first of its kind.

Signals · overall 5/10
Demand
4/10

Wikipedia/NVFC confirm ~100 US firefighter arson convictions/yr is a real but rare phenomenon; Hacker News thread was only 30 points, and fire chiefs of small volunteer departments are not visibly searching for screening software — demand exists but is latent and unsearched.Firefighter arson - WikipediaNVFC Arson Report

Whitespace
8/10

No dedicated software product exists for this; competitors like ImageTrend, Active911, ESO, and Ember Fire focus on dispatch/EMS/HR operations, not arson-pattern member screening. NVFC's 'Toolkit' is a PDF, not software — market is genuinely open.Active911 vs ImageTrend ComparisonWhat We Do - Ember Fire

Monetization
4/10

Volunteer and small combination departments are notoriously cash-strapped, and a screening tool used only at onboarding has thin unit economics; existing fire-software buyers do pay (Active911 pricing exists), but willingness to pay for a narrow, infrequent-use arson screen is unproven.Pricing - Active911Top 10 Best Volunteer Fire Department Software

Longevity
7/10

The firefighter arson pattern has been documented for decades (1990s FBI/SC Forestry Commission profiles, 2003 USFA report, 2011 NVFC report, 2026 Wikipedia edits) and NFIRS still does not track it — the underlying problem and blind spot are structurally persistent.Firefighter arson - Wikipedia

Feasibility
4/10

Documented profile criteria exist and a screening questionnaire is buildable, but matching candidates against an 'arsonist pattern' creates serious defamation/employment-discrimination liability and false-positive risk in small-town departments where reputation is everything — distribution to non-HR chiefs is also hard.Firefighter Arsonists: Stopping the Problem at the Door of the Firehouse

Firefighter arson a long-standing issue – expert · 30 points · 31 commentsHacker News · 2026-08-01 (today)