Self-selection policing is an approach whereby serious underlying criminality is detected by an offender’s minor crimes (known as trigger offences). Strategic offences are offences that indicate an increased likelihood that the associated offender will engage in later offending. The purpose of this study was to determine if first-time serious traffic offending in Western Australia indicates previous and/or future non-traffic criminality, thereby demonstrating the utility of serious traffic offences as trigger offences and strategic offences. The authors collated the crime data of all first-time serious traffic offenders in Western Australia between December 2004 and December 2014. Using this data, survival analyses were conducted to determine if and when a first-time serious traffic offender committed an initial non-traffic offence within 10 years of their first serious traffic offence. When comparing this data to data from the Australian Bureau of Statistics, the authors found that first-time serious traffic offenders are more likely than the average Western Australian to have a previous or future initial non-traffic offence. Some groups of first-time traffic offenders were more likely to commit non-traffic offences than others including males, individuals under the age of 25, drug drivers and drivers without authority. These results support the use of first-time serious traffic offences as trigger/strategic offences and could be used to identify and divert traffic offenders with versatile criminal histories and traffic offenders at risk of future criminal activity.

自选警务是一种方法，通过这种方法，犯罪者的轻罪（称为触发犯罪）可以发现严重的基础犯罪。战略犯罪是表明相关犯罪者日后参与犯罪的可能性增加的犯罪。这项研究的目的是确定在西澳大利亚州首次发生的严重交通犯罪是否表明以前和/或将来的非交通犯罪，从而证明了严重的交通犯罪可作为触发性犯罪和战略性犯罪。作者整理了2004年12月至2014年12月期间西澳大利亚州所有首次严重交通犯罪的犯罪数据。使用这些数据，进行了生存分析，以确定首次严重交通犯罪者在第一次严重交通犯罪后十年内是否以及何时犯下了最初的非交通犯罪。当将这些数据与澳大利亚统计局的数据进行比较时，作者发现，比起普通的西澳大利亚人，初次严重的交通肇事者更可能有先前或将来的初次非交通犯罪。某些初犯者比其他人更容易犯非交通犯罪，其中包括男性，25岁以下的人，毒品驾驶员和未经许可的驾驶员。