Prior NTAC Studies

Prior NTAC study: Mass Attacks in Public Spaces, 2016–2020 (2023)

NTAC's 2023 report Mass Attacks in Public Spaces: 2016–2020 examined mass violence in public and semi-public spaces over five years.

In 2023, NTAC published Mass Attacks in Public Spaces: 2016 – 2020, a report that examined 173 acts of mass violence

• Mass Attacks Dataset
• NTAC Research
• Prior NTAC Studies

cite page 8 Introduction

Workplace attacks ended in attacker suicide more often (46%) than non-workplace attacks (16%)

Workplace attacks ended with the attacker's suicide at a higher rate (46%) than the non-workplace mass violence incidents (16%) examined in NTAC's 2023 study Mass Attacks in Public Spaces: 2016–2020.

Sample (n = 23 of 50) · incidents (attacks) in the study

attacks ended with the attacker's suicide at higher rates (46%) than in non-workplace related mass violence incidents (16%)

• Attacker Suicide
• Incident Resolution
• Prior NTAC Studies

cite page 14 The Incidents

Prior NTAC study: Mass Attacks in Public Spaces 2016-2020

The report compares the workplace attackers' suicide rate against the non-workplace incidents in Mass Attacks in Public Spaces: 2016-2020, a prior NTAC study published in 2023.

Mass Attacks in Public Spaces: 2016 - 2020 (2023)

• NTAC Research
• Prior NTAC Studies

cite page 14 The Incidents

NTAC Mass Attacks in Public Spaces: 2016-2020 (2023) study

The 41% and 29% figures come from NTAC's 2023 study Mass Attacks in Public Spaces: 2016-2020.

Sample (n = undeterminable of undeterminable) · NTAC Mass Attacks in Public Spaces: 2016-2020 (2023), a different study

In Mass Attacks in Public Spaces: 2016 – 2020 (2023), NTAC found

• Mass Attacks Dataset
• Prior NTAC Studies

cite page 52 Step 4: Identify and Process Reports of Concerning Behavior

Workplace was the most common formal setting for observed concerning behavior

In Mass Attacks in Public Spaces: 2016-2020 (2023), NTAC found that the workplace was the most common formal setting in which concerning behavior was observed.

NTAC found that the workplace was the most common formal setting in which concerning behavior was observed

• Behaviors Of Concern
• Prior NTAC Studies
• Workplace Violence

cite page 59 Step 5: Gather Information to Assess for Risk

Most attackers showed behaviors that elicited concern before attacks

NTAC research has shown that most attackers exhibited behaviors that elicited concern in others prior to their attacks, across a variety of systems.

most attackers exhibited behaviors that elicited concern in others prior to their attacks

• Attackers
• Elicited Concern
• Prior NTAC Studies

cite page 59 Step 5: Gather Information to Assess for Risk

NTAC presented 20 Assessment Themes built on 25 years of NTAC research and operational expertise

NTAC presented 20 Assessment Themes established by 25 years of NTAC research and the Secret Service's unique operational expertise in violence prevention.

NTAC presented the 20 Assessment Themes that have been established by 25 years of NTAC research

• Assessment Themes
• NTAC Research
• Prior NTAC Studies

cite page 67 Step 5: Gather Information to Assess for Risk

Cited prior NTAC guide: Behavioral Threat Assessment Units (2024)

The Assessment Themes are presented in NTAC's 2024 guide for state and local law enforcement, Behavioral Threat Assessment Units.

Behavioral Threat Assessment Units: A Guide for State and Local Law Enforcement to Prevent Targeted Violence (2024)

• Assessment Themes
• Law Enforcement
• Prior NTAC Studies

cite page 67 Step 5: Gather Information to Assess for Risk

Many past attackers had substantial negative contextual experiences

Prior NTAC research has found that many past attackers had substantial negative experiences related to the contextual themes.

prior NTAC research has found that many past attackers had substantial negative experiences related to these contextual themes

• Attackers
• Contextual Themes
• Prior NTAC Studies

cite page 68 Step 5: Gather Information to Assess for Risk