b'Total High Harm Offenders = 2,39828% Offenders Flagged(680) Offenders Not Flagged71%(1,718)Figure 3: Total Number of False Negative IPV High Risk Flags 2009-20199% Total Non High Harm Offenders = 6,637(591) Flagged as high riskNot Flagged as high risk91%(6,046)Figure 4: Number of Non-High-Harm Offenders Flagged vs Not Flagged as High Risk9,035 IPV offenders committed one orinidentifyingthemostharmfulIPVvictimization(Walker,1984).Thisis more high-harm IPV crimes betweenoffenders. Although the findings wereillustrated by the finding that 69 per 2009 and 2019. Interestingly, 71 perretrospective, support for this theorycentofoffenderspredictedtobe centofthe2,398offenderswerewasgeneratedbythefindingthathigh risk were not charged with any not flagged as high risk at any timeover three times as many offendersfurther IPV crimes in 730 days after between2009and2019.Inotherthatwerechargedwithmurderorbeing identified. This finding is similar words, the false negative rate is 71attempted murder had a suicidal ten- to other research in this area (Bland per cent in forecasting high-harm IPVdenciesflagcomparedtooffenders&Ariel,2015;Chambers-McClellan, offenders. This finding is illustrated inthat did not commit any crimes after2002;Sherman&Berk,1984).This Figure 3. beingforecastedashighrisk.Thisknowledge can be utilized by police Figure 4 indicates that 91 per centfindingshouldbeconsideredwithservices in understanding the value of ofthetotalIPVoffendersbetweencautiongiventhatthetotalsampleusing resources to focus on identifying 2009 and 2019 were true negatives,of offenders with a suicide flag wastheperpetratorsthatarelikelyto meaningtheywerecorrectlyfore- small, coupled with the fact that it isre-offend rather than anticipating that castedasnothighriskandwerenot clear if an offender received theall offenders will re-offend.not flagged. flagpriortoorafterbeingchargedIntermsofincreasingfrequency with an IPV crime. andescalation,manyoffenders(89 RecentresearchhasadvancedDiscussionper cent) did not escalate in the sense the theory of suicidal ideations as anof committing an identified high-harm indicator of lethal IPV offending. ThisThisstudybringsintoquestionthecrime,and35percentwerenot study has considered whether or notlong-held notion that IPV involves acharged with any crimes. It should be a suicidal tendencies flag may assistcycle of violence and ongoing repeat 22 H.Q. Summer 2021'