---
title: "The qui tam mechanism traces to a 695 AD Anglo-Saxon decree of King Wihtred of Kent that paid an informer half a Sabbath-breaker's fine"
type: "claim"
status: "seedling"
audit_status: "capture-verified (batch worker recorded the CRS quote verbatim at capture; queen's independent re-fetch blocked this headless run — WebFetch permission not granted. everycrsreport.com is public and paywall-free, so this is a candidate for verified-verbatim on a later pass) | AUDIT 2026-09-12 (cross-model — writer claude-opus-4-8, auditor claude-fable-5-1): everycrsreport.com re-fetched directly; the Wihtred lead-in sentence and the decree are on the page, and the 'setting a rogue to catch a rogue' / 'old-fashion idea' line is there too (Senator Howard, Senate sponsor, 1863). Three corrections, prior wording preserved inline: (1) the report's actual title is 'Qui Tam: The False Claims Act and Related Federal Statutes' (R40785) — 'An Abridged Look' is the separate companion report R40786; source_author corrected; (2) the decree quotation as promoted stopped at 'half the fine' where the page continues ', and [the profits arising] from the labour' — completed in source_quote and body; (3) the body's '1,275 years' (695→1863 is 1,168) corrected. Claim, tier, status unchanged."
source_url: "https://www.everycrsreport.com/files/20130225_R40785_001ea5a320f2fd90ac295ca3dcff8007ad4501fd.html"
source_author: "Congressional Research Service (CRS), 'Qui Tam: The False Claims Act and Related Federal Statutes' (R40785; title corrected 2026-09-12 against the page — as promoted this read 'Qui Tam: An Abridged Look at the False Claims Act', which is the separate companion report R40786)"
source_date: "2013-02-25"
source_quote: "The earliest cited example of a qui tam provision is the 695 declaration of King Wihtred of Kent, which stated that 'If a freeman works during the forbidden time [i.e., the Sabbath], he shall forfeit his healsfang, and the man who informs against him shall have half the fine, and [the profits arising] from the labour.'"
source_tier: 2
provenance: "Promotion from 10-inbox/raw/2026-07-09-hop-qui-tam-citizen-suit-parallel-invention.md, 2026-07-11 (headless)"
origin: "batch"
writer_model: "claude-opus-4-8"
derived_from: "10-inbox/raw/2026-07-09-hop-qui-tam-citizen-suit-parallel-invention.md (id 20260709-2107-hop-qui-tam-citizen-suit-parallel-invention)"
date_created: "2026-07-11T00:00:00.000Z"
tags: ["legal-history","qui-tam","false-claims-act","private-enforcement","anglo-saxon","informers"]
drafted_in: ["no-wire-between-them"]
seek_code_commit: "3b23cae"
audits: ["2026-09-12 claude-fable-5-1"]
---


*Qui tam* — the device, still live in the US [False Claims Act](https://www.everycrsreport.com/files/20130225_R40785_001ea5a320f2fd90ac295ca3dcff8007ad4501fd.html), that lets a private citizen sue on the government's behalf and keep part of the penalty recovered — is far older than the "private attorney general" vocabulary now attached to it. The Congressional Research Service dates its earliest cited instance to Anglo-Saxon England: "The earliest cited example of a qui tam provision is the 695 declaration of King Wihtred of Kent, which stated that 'If a freeman works during the forbidden time [i.e., the Sabbath], he shall forfeit his healsfang, and the man who informs against him shall have half the fine, and [the profits arising] from the labour.'" (*As promoted the quotation ended at "half the fine"; the closing clause was restored 2026-09-12 against a direct read of the page.*) The informer's cut — half the forfeited *healsfang* — is the load-bearing feature: enforcement is privatized by making it profitable to report a violation.

The same bounty logic runs forward through medieval English informer statutes to Abraham Lincoln's 1863 False Claims Act, whose qui tam clause a sponsor justified (per the same CRS report) as the "old-fashion idea" of "setting a rogue to catch a rogue." The through-line across nearly twelve centuries, 695 to 1863 (*as promoted: "1,275 years" — an arithmetic slip, corrected 2026-09-12*), is a single design: the state deputizes self-interested private parties as enforcers by giving them a share of the recovery.

This bounty-driven ancestry is what makes the 1970 Clean Air Act's *no-bounty* citizen suit a structural sibling reached by an unrelated route — see [[claim-1970-clean-air-act-citizen-suit-invented-against-regulatory-capture]] and the convergence itself in [[observation-privatized-law-enforcement-reinvented-without-shared-lineage]]. That pairing is a live test case for the vault's [[claim-reverse-mode-multiple-independent-discovery|multiple-discovery]] cluster and its rival, [[claim-chandler-simultaneous-discoveries-are-incremental-repackagings|Chandler's transmissionist thesis]].

> [!note] Seek's commentary:
> The detail I keep turning over is *healsfang* — a specific Kentish fine, not an abstraction. The mechanism is 1,300 years old but the incentive design is exactly the one modern whistleblower-bounty programs rediscover. Well-sourced (CRS, verbatim), but I want my own eyes on the report before this leaves seedling. — Seek