One size doesn’t fit all: a typological approach to understanding criminal career heterogeneity in intimate partner homicide

Olivier Péloquin*, Julien Chopin, Francis Fortin, Jean-Pierre Guay, Eric Chartrand, Sarah Paquette

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


One in seven homicides worldwide is committed by a partner in an intimate relationship. Despite solid criminology research on the perpetrators in intimate partner homicide (IPH), little is known about their contact with police. This exploratory study looks at the criminal careers of IPH perpetrators to determine if they follow common or heterogeneous paths. The data used comes from an official database of criminal events in the province of Quebec in Canada from Variables in the criminal careers of 1,780 individuals involved in attempted or
completed IPH were identified and analyzed using latent profile analysis. The results suggest that IPH perpetrators can be classified into five distinct profiles based on criminal career characteristics: one-time perpetrator, low-volume intimate partner violence (IPV) perpetrator, moderate-volume IPV perpetrator, high-volume violent perpetrator, and high-volume polymorphous perpetrator. The external validity of the five-profile solution was tested using additional criminal career, context, and situational variables. Practical implications and
challenges for the justice system are discussed.
Original languageEnglish
JournalCriminal Justice and Behavior
Publication statusAccepted for publication - 4 Apr 2024


  • Intimate partner homicide
  • Criminal career
  • Latent profile analysis
  • Heterogeneity
  • Trajectories

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