# Missouri HB3459: Establishes "Preston's Law" which establishes standards of conduct for law enforcement officers when conducting homicide investigations

Missouri HB3459, Establishes "Preston's Law" which establishes standards of conduct for law enforcement officers when conducting homicide investigations, is a 2026 Regular Session House bill sponsored by Yolonda Fountain Henderson (Democratic); status failed, last action 2026-05-15 (Referred: Emerging Issues) (as of 2026-11-04).

- Canonical: https://policyrisk.com/state-bill/MO-HB3459-2026
- As of: 2026-11-04
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Bill: Missouri HB3459
- State: Missouri
- Session: 2026 Regular Session
- Title: Establishes "Preston's Law" which establishes standards of conduct for law enforcement officers when conducting homicide investigations
- Status: failed
- Chamber: House
- Introduced: 2026-02-26
- Last action: 2026-05-15, Referred: Emerging Issues
- Sponsor: Yolonda Fountain Henderson (Democratic)
- Cosponsors: 0
- Touches household money: no
- Economic provisions PRIA read: 0

## Summary

No summary available.

## Bill overview

No economic impacts identified for this bill.

## Sponsors and cosponsors

- Sponsor: Yolonda Fountain Henderson (Democratic), House

## Actions (3)

- 2026-05-15: Referred: Emerging Issues (House)
- 2026-02-27: Read Second Time (House)
- 2026-02-26: Introduced and Read First Time (House)

## Bill text

- Introduced, 2026-02-26: [PDF](https://documents.house.mo.gov/billtracking/bills261/hlrbillspdf/6956H.01I.pdf)

## Related bills

- HB3231: Establishes the "Missouri Innovation, Public Safety, and Accountability Act" (signed)
- HB3080: Modifies the historic preservation tax credit (signed)
- HB2974: Modifies provisions relating to licensure reciprocity (signed)
- HB2885: Requires all proceeds from boating registrations to be deposited in the water patrol division fund and used exclusively for the water patrol division (signed)
- HB2896: Modifies provisions relating to the governing bodies of certain public institutions of higher education (signed)
- HB2819: Modifies provisions relating to certain cash transactions requiring rounding to the nearest five cent denomination (signed)

## Sources
- [Introduced (PDF)](https://documents.house.mo.gov/billtracking/bills261/hlrbillspdf/6956H.01I.pdf)

## Related
- [HB3231: Establishes the "Missouri Innovation, Public Safety, and Accountability Act"](https://policyrisk.com/state-bill/MO-HB3231-2026)
- [HB3080: Modifies the historic preservation tax credit](https://policyrisk.com/state-bill/MO-HB3080-2026)
- [HB2974: Modifies provisions relating to licensure reciprocity](https://policyrisk.com/state-bill/MO-HB2974-2026)
- [HB2885: Requires all proceeds from boating registrations to be deposited in the water p…](https://policyrisk.com/state-bill/MO-HB2885-2026)
- [HB2896: Modifies provisions relating to the governing bodies of certain public institut…](https://policyrisk.com/state-bill/MO-HB2896-2026)
- [HB2819: Modifies provisions relating to certain cash transactions requiring rounding to…](https://policyrisk.com/state-bill/MO-HB2819-2026)
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- [Missouri state hub](https://policyrisk.com/states/missouri)
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Source: PRIA, https://policyrisk.com/state-bill/MO-HB3459-2026 (as of 2026-11-04).