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NSCR, Nederlands Studiecentrum Criminaliteit en Rechtshandhaving

Dr Peter Ejbye-Ernst

Senior Researcher | Program Leader

Email:
PEjbyeErnst@nscr.nl

Related websites:

Publications

2026

L van Lith; P Ejbye-Ernst; E Borghuis; V Hutter

De-escalation techniques on daily duty: a body-worn camera analysis of police–civilian interactions in the Netherlands

Journal Article

S K Harder; P Ejbye-Ernst

The Suspicious Porn Consumer: A Semiotic Study of Reports to Child Sexual Abuse Hotlines

Journal Article

2025

P Ejbye-Ernst

Being in control: Policing bodies, emotions and violence

Journal Article

L Liebst; W Bernasco; P Ejbye-Ernst; N van Herwijnen; T van der Veen; D Koelma; C G M Snoek; M R Lindegaard

Association Between Social Distancing Compliance and Public Place Crowding During the COVID-19 Pandemic: A Cross-Sectional Computer Vision Analysis of Surveillance Footage

Journal Article

L Liebst; K Moeller; C B Friis; P Ejbye-Ernst; R Philpot; M Heinskou; M Lindegaard

From a Single Punch to Weapon Use: An Event Typology of Public Place Violence

Journal Article

M van Dalen; P Ejbye-Ernst; J Thomas; L van Bruchem; L Liebst; M R Lindegaard

Een video-observatiestudie naar de samenwerking tussen stewards en politie tijdens het de-escaleren van conflicten op straat

Journal Article

P Ejbye-Ernst

Being in control: Policing bodies, emotions and violence

Journal Article

H M Sunde; P Ejbye-Ernst; M R Lindegaard

Exploring use of force as an interactional process: A qualitative video analysis of how Dutch police officers use physical force.

Journal Article

2024

V Pallante; M van Marle; K van Hamburg; P Ejbye-Ernst; MR Lindegaard

Shop Employees at Risk of Customer Aggression in Self-Scan Areas? A Video Observational Pilot Study of Everyday Encounters in Shops

Miscellaneous

V Pallante; L S Liebst; P Ejbye-Ernst; C B Friis; M R Lindegaard

Leveraging Video Footage for Ethological Observation of Human Behavior

Book Chapter

L van Reemst; M van Bruchem; M van Dalen; P Ejbye-Ernst; L van Lith; H Myhre Sunde; V Pallante; M R Lindegaard

De-escalatie van agressie tijdens politie-burgerinteracties in het uitgaansleven

Miscellaneous

M A Hillen; E M Hoeben; R Kok; C McHale; M M Sexton; S van der Asdonk; D van de Bongardt; B Bowman; R Brown; S Branje; J Chorney; M H Donker; P Ejbye-Ernst; S Geeraerts; D van der Giessen; G Humphris; H Larsen; R Philpot; M Portell; S Yuan; C van der Veen; J Noordman

Guidelines for reporting research using systematic coding of observed human behaviour (SCOBe)

Journal Article

M van Dalen; V Pallante; H M Sunde; L S Liebst; P Ejbye-Ernst; C van Baak; M Sexton; F Thijs; L Echelmeyer; S van de Weijer; L Pighini; G Chlevickaite; J Thomas; M R Lindegaard

Covert Systematic Social Observations: A Method to Detect Ethnic Profiling in Police’s Selection of Citizens for Stop-and-Search

Journal Article

H M Sunde; L van Reemst; C B Friis; P Ejbye-Ernst; L S Liebst; M R Lindegaard

Video-Based Interaction Ethology of Policing in Action: An Ethogram Approach to Describe, Quantify and Compare Behaviour Across Policing Situations

Journal Article

P Ejbye-Ernst; C Friis; L Liebst; M Lindegaard

Observing Ordinary Conflicts

Book Chapter

2023

P Ejbye-Ernst; M Sexton; J Thomas; MR Lindegaard

Evaluation of light-based interventions related to drug dealing and public disturbances

Miscellaneous

V Pallante; P Ejbye-Ernst; MR Lindegaard

An ethogram method for the analysis of human distress-related behaviours in the aftermath of public conflicts

Journal Article

P Ejbye-Ernst; K Moeller; LS Liebst; J Thomas; M Sexton; MR Lindegaard

“It’s illegal to buy drugs from street dealers”—a video-based pre-post study of a behavioral intervention to displace dealers from an Amsterdam open-air drug market

Journal Article

2022

P Ejbye-Ernst

Intervention in (inter)action. A video-based analysis of the role of third parties in interpersonal conflicts

PhD Thesis

V Pallante; LS Liebst; P Ejbye-Ernst; CB Friis; MR Lindegaard

Putting actual behavior back into the social sciences: A Plea for video-based interaction ethology (pre-print)

Journal Article

MR Lindegaard; P Ejbye-Ernst; M van Dalen; H Myhre Sunde; C van Baak; M Sexton; V Pallante; F Thijs; L Echelmeyer; S van de Weijer; L Pighini; G Chlevickaite; J Thomas; LS Liebst

Profilering van burgers tijdens wapencontroles in Amsterdam: een observationele analyse van praktijken en mogelijke biases

Miscellaneous

L S Liebst; P Ejbye-Ernst; M de Bruin; J Thomas; M R Lindegaard

No evidence that mask-wearing in public places elicits risk compensation behavior during the COVID-19 pandemic

Journal Article

P Ejbye-Ernst; M R Lindegaard; W Bernasco

How to stop a fight—A qualitative video analysis of how third-parties de-escalate real-life interpersonal conflicts in public

Journal Article

2021

MR Lindegaard; W Bernasco; LS Liebst; E Hoeben; J Appelman; K Bijleveld; J Thomas; P Ejbye-Ernst; D Koelma; C Snoek; T van der Veen; N van Herwijnen

One Year of Social Distancing Behavior on the Streets of Amsterdam (pre-print, version I)

Miscellaneous

LS Liebst; P Ejbye-Ernst; M de Bruin; J Thomas; MR Lindegaard

Face-touching behavior as a possible correlate of mask-wearing: A video observational study of public place incidents during the COVID-19 pandemic

Journal Article

P Ejbye-Ernst; MR Lindegaard; W Bernasco

Third Parties Mirror the Aggression of the Antagonists: A Video-Based Analysis of Third-Party Aggression in Interpersonal Conflicts

Journal Article

J Appelman; K Bijleveld; P Ejbye-Ernst; E Hoeben; LS Liebst; C Snoek; D Koelma; MR Lindegaard

Naleving van gedragsmaatregelen tijdens de COVID-19-pandemie

Journal Article

MR Lindegaard; LS Liebst; J Appelman; E Hoeben; P Ejbye-Ernst; K Bijleveld

COVID-19 Factsheets

Miscellaneous

P Ejbye-Ernst; M R Lindegaard; W Bernasco

How to Stop a Fight - A Qualitative Video Analysis of How Third-parties De-escalate Real-life Interpersonal Conflicts in Public

Journal Article

2020

MR Lindegaard; LS Liebst; J Thomas; P Ejbye-Ernst; L van Reemst; N van Doormaal

Resultaten van de mondkapjesplicht: naleving, drukte en social distancing in Amsterdam & Rotterdam

Miscellaneous

P Ejbye-Ernst; MR Lindegaard; W Bernasco

A CCTV-based analysis of target selection by guardians intervening in interpersonal conflicts

Journal Article

2019

L Liebst; P Ejbye-Ernst; R Philpot; M Heinskou; J Demant; K Dausel; M Lindegaard

Intervention or Involvement: A Video Observational Analysis of Bouncers in Aggressive Encounters

Journal Article

L S Liebst; R Philpot; W Bernasco; K L Dausel; P Ejbye‐Ernst; M H Nicolaisen; M R Lindegaard

Social relations and presence of others predict bystander intervention: Evidence from violent incidents captured on CCTV

Journal Article

2018

L S Liebst; M B Heinskou; P Ejbye-Ernst

On the Actual Risk of Bystander Intervention: A Statistical Study Based on Naturally Occurring Violent Emergencies

Journal Article

Recent contributions by Peter Ejbye-Ernst