---
kind: "unit"
title: "42"
title_heading: "The Public Health and Welfare"
key: "ch136/schIX"
level: "subchapter"
label: "Subchapter IX"
heading: "State and Local Law Enforcement"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/42/ch136-schIX"
sections_count: 34
---

# Subchapter IX — State and Local Law Enforcement

Title 42 — The Public Health and Welfare › Chapter 136 — Violent Crime Control and Law Enforcement

## Contents

- [Part A — DNA Identification](/usc/42/ch136-schIX-ptA.md)
- [Part B — Police Pattern or Practice](/usc/42/ch136-schIX-ptB.md)
- [Part C — Improved Training and Technical Automation](/usc/42/ch136-schIX-ptC.md)
- [Part D — Other State and Local Aid](/usc/42/ch136-schIX-ptD.md)
- [Part E — Improving the Quality of Representation in State Capital Cases](/usc/42/ch136-schIX-ptE.md)
- [Part F — Rafael Ramos and Wenjian Liu National Blue Alert](/usc/42/ch136-schIX-ptF.md)