RT Article T1 Re-examining the dual harm profile: an assessment using US prison population-level data JF Psychology, crime & law VO 30 IS 7 SP 758 OP 772 A1 Slade, Karen A2 Smith, Hayden A2 Potter, Adam A2 Baguley, Thomas 1968- LA English YR 2024 UL https://krimdok.uni-tuebingen.de/Record/1900825317 AB Dual harm behaviour has recently gained scholarly attention. Dual harm centres on a subset of people who display violent and self-harming behaviour. This study re-examines the differential profile characteristics identified in Europe for those who dual harm, using international data featuring a population study of a state prison system in the south-eastern United States. Three years of data produced 43,489 institutional events, from a custodial population of 22,918. Logistic regression analysis indicates that those who dual harm in custody had an overall rate of infraction 40–70% higher than those who engage solely in violence or self-harm, and five times higher than those without physical harm infractions. Dual harm was associated with higher rates of non-harm incidents (e.g. property damage and disorder), younger age, lower educational achievements on admission and less educational development during imprisonment, greater self-reported mental health need although not substance abuse, and fewer intimate relationships. Dual harm was related to more lethal acts of self-harm such as ligature or ingestion. This is the first study that applies the dual harm profile to prison data within the US. This study supports dual harm as a highly relevant construct within international custodial settings and offers policy implications for this population. K1 Prison K1 Suicide K1 self-harm: non-suicidal self-injury K1 Violence K1 Dual harm DO 10.1080/1068316X.2022.2127716