Patrol Case Law Field Guide — Volume 2: Investigative Detentions + Quick Reference Guide

PATROL CASE LAW FIELD GUIDE — VOLUME 2: INVESTIGATIVE DETENTIONS

When does a consensual contact become a seizure? What facts establish reasonable suspicion? When is a frisk legally justified? How long can an investigative detention reasonably last?

Volume 2: Investigative Detentions breaks down the major federal constitutional case law governing investigative detentions and organizes it around the decisions officers make during real patrol encounters.

The guide follows the progression of an investigative detention:

CONTACT → SEIZURE → REASONABLE SUSPICION → DETENTION → FRISK → DURATION → ESCALATION → RESOLUTION

Rather than simply listing cases and holdings, the guide focuses on what the courts established, how those principles apply during patrol, and where the limits of an officer’s authority are.

TOPICS INCLUDE:

• Consensual encounters versus Fourth Amendment seizures

• When a person is considered detained

• Developing and articulating reasonable suspicion

• The totality-of-the-circumstances standard

• Using officer observations, behavior, location, and other facts when evaluating reasonable suspicion

• Anonymous tips and informant information

• Investigative detention authority

• Frisks for weapons and the separate legal justification required

• Scope and duration of investigative detentions

• Use of restraints and other circumstances that may affect the character of a detention

• Escalation from reasonable suspicion to probable cause

• Articulating the facts supporting an investigative detention

YOUR PURCHASE INCLUDES:

1. Volume 2 — Investigative Detentions Field Guide

The complete patrol case-law reference covering the legal principles, major cases, patrol applications, limitations, articulation, and practical scenarios surrounding investigative detentions.

2. Investigative Detentions Quick Reference Guide

A condensed companion reference designed to reinforce the major concepts and decision points from the full field guide.

BUILT FOR:

Patrol Officers • FTOs • Supervisors • Instructors • Academy Recruits

DIGITAL PRODUCT — $20

This guide primarily addresses federal constitutional principles and significant U.S. Supreme Court case law. State law, state constitutional protections, controlling jurisdictional case law, and agency policy may impose different or additional requirements.

Blue Line Briefing materials are educational training aids and do not constitute legal advice or replace agency policy, department training, prosecutors, legal advisors, or controlling law.

HIGH STANDARDS. SOLID TRAINING. BETTER OFFICERS.