Criminal investigative work entails a diverse array of tasks and responsibilities, ranging from interviewing suspects and victims to managing the paperwork and necessary follow-ups for each case. The present study sought to evaluate the workload and workload impacts of police investigators in a metropolitan police agency. The NASA-Task Load Index (NASA-TLX), a well-established human factor measure of workload, was administered on 759 investigators as a quantitative measure of workload. Subsequently, 49 investigators participated in focus group discussions to provide deeper insight into their workload experiences. The results indicate that police investigators reported a markedly high level of workload when compared to similar human factor studies in the literature. Findings of the focus group discussions attributed the perceived high workload to various contributors such as operational challenges, dealing with the public and external agencies, as well as organisational challenges. Interventions to manage the heavy workload were discussed. The human factors approach can be a suggested approach to understand the task load of police officers.

刑事调查工作涉及各种各样的任务和责任，从采访嫌疑人和受害者到管理文书工作和每个案件的必要后续行动。本研究旨在评估大都市警察机构警察调查员的工作量和工作量影响。NASA 任务负荷指数 (NASA-TLX) 是一种公认​​的工作量人为因素衡量标准，对 759 名调查人员进行了管理，作为工作量的定量衡量标准。随后，49 名调查人员参加了焦点小组讨论，以更深入地了解他们的工作量经历。结果表明，与文献中类似的人为因素研究相比，警方调查人员报告的工作量显着增加。焦点小组讨论的结果将感知到的高工作量归因于各种因素，例如运营挑战、与公共和外部机构打交道以及组织挑战。讨论了管理繁重工作量的干预措施。人为因素方法可以作为一种建议的方法来了解警察的任务负荷。