Field Manual: Smith & Wesson Model 100-1P Handcuff SOP

How to Guides - Product Field Manual SOPs - Luminary Global

Field Manual: Smith & Wesson Model 100-1P Handcuff SOP

Category: Law Enforcement

Difficulty Level: Tier 4: Professional or Advanced Training Required

Get the Complete Field Manual

Download the official step-by-step PDF guide.

📥 Download PDF Guide

Written by: Valerie Ellis Lavin

Quick Overview

The Smith & Wesson Model 100-1P is a NIJ-compliant, carbon steel chain-linked handcuff used by certified law enforcement officers, corrections personnel, and licensed security professionals for the temporary mechanical restraint and controlled transport of subjects.

The Model 100-1P is built around its defining capability: the Push Pin Double Lock system. Unlike standard slot-lock designs, the push pin allows rapid, tactile engagement of the secondary lock without fine motor precision, making it reliable in low-light conditions and high-stress deployments. The fitment range of 5.8 to 8.4 inches accommodates most subjects, and the nickel-plated carbon steel construction provides corrosion resistance for field-ready durability across patrol and tactical environments.

Proper deployment protocol requires more than mechanical application. The operator must assess fit immediately after application using the index finger test, confirm the subject retains sensation in their fingertips, and engage the double lock on both cuffs before transport. Failure to double-lock is a direct liability exposure, as it allows unintentional tightening during struggle or movement, which is the primary cause of handcuff-related injury including radial neuropathy and ischemia.

Sustainment of this restraint system is a readiness obligation, not an afterthought. Pre-shift inspection covers visual integrity of the cuff body, single strand function, key operation, push pin engagement, and debris clearance from the ratchet channel and keyway. Any cuff presenting a cracked frame, non-functioning lock, or significant corrosion must be removed from service immediately per decommissioning criteria.

---

Field Application Steps

1. STAGE THE CUFFS FOR APPLICATION: Grip the chain links with your lower three fingers in your dominant hand. Position your thumb and index finger on the double strand of the top cuff, confirm the single strand swings freely, and orient the keyholes away from the subject's body.

2. APPLY THE TOP CUFF: Place the double strand against the thumb-side of the subject's wrist and apply firm downward pressure, causing the single strand to swing around and engage the ratchet teeth. Position the cuff between the wrist bone and the hand to limit leverage and reduce the risk of nerve injury.

3. APPLY THE SECOND CUFF: While maintaining control of the first cuffed hand and the chain, bring the subject's second hand into position. Apply the second cuff using the same procedure as the first.

4. ASSESS FOR PROPER FIT: Immediately check both cuffs by inserting the tip of your index finger between the cuff and the subject's wrist. Cuffs must be tight enough to prevent escape but must not restrict circulation. Ask the subject whether they can feel their fingertips and verbally confirm fit.

5. ENGAGE THE PUSH PIN DOUBLE LOCK: Using the pin on the back of the handcuff key, firmly depress the Push Pin on the edge of the cuff body until it clicks or sets into the recessed position. Physically verify the single strand no longer tightens, then verbally announce confirmation for each cuff.

6. MONITOR THE SUBJECT CONTINUOUSLY: Once restrained, observe the subject's hands for discoloration or numbness indicating circulation loss. If the subject reports numbness or pain, immediately reassess cuff tightness and adjust.

7. MANAGE SUBJECT POSITION: Move the restrained subject out of the prone position to a seated or recovery position as soon as tactically feasible. Extended prone restraint, particularly for subjects who are obese, agitated, or under the influence, creates a serious risk of positional asphyxia.

8. REMOVE THE CUFFS: Insert the key into the keyway and turn away from the single strand to disengage the double lock, confirming the click or release. Turn the key toward the single strand to disengage the primary lock, open the cuff, and remove it. Secure the subject or the device per agency protocol.

---

Equip Yourself: Smith & Wesson Handcuffs with Push Pin Double Lock - NIJ Tested

Ensure you have the right gear before an emergency strikes.

View Product

LEGAL DISCLAIMER & SAFETY WARNING:
The information provided in this Luminary Global Field Manual is strictly for educational and informational purposes. It is not a substitute for formal medical, tactical, or professional training. In the event of a medical emergency, immediately seek professional help or contact emergency services. Luminary Global assumes no liability for the misuse of equipment, improper application of techniques, or any injuries/damages resulting from the use of these guidelines. Always rely on your official agency training, local laws, and established protocols during a crisis.