sentences:  For all intimate partner relationships, offenders were more likely to be arrested if the incident of violence was a serious aggravated assault.The NIJ also reported that "arrest occurred more frequently in cases involving intimate partners if the offender was white" and "cases involving intimate partners and acquaintances were more likely to result in arrest if the offender was 21 or older".The increased use of arrest has led to concerns about increases in arrests of women or arrests of two or more persons (dual arrests) in the same incident.