The theft of diamonds from diamond mines has been a longstanding problem for mine owners in South Africa (7th largest world producer of diamonds by carats). To combat such thefts mining operations have, over the years, instituted various measures, inter alia integrated security measures, and implemented several technological aids to try to reduce and/or stamp out this theft from their mining operations. This research study focussed on diamond theft taking place at the Cullinan Diamond Mine in South Africa and aimed to determine whether intelligence-led and technology solutions could assist in preventing or reducing the theft of diamonds. However, this theft has a considerable impact on the profitability of diamond mining. Accordingly, the security measures at Cullinan have a specific customised focus on preventing the theft of diamonds from the mining operations. The findings, while broadly indicating that they were effective, also revealed security and systemic gaps that could be improved. These centred around more effective use of technological aids; improving the co-operative relationship between intelligence analysts and security officers on the ground with co-ordinated sharing of collected information, and finally making the informer system more proactive, protective and rewarding for participating informants. The research was conducted by means of onsite observations; perusal of diamond theft case dockets that were internally investigated by Cullinan Diamond Mine security personnel (and substantiated by the police case dockets opened); and the undertaking of 30 one-on-one interviews—the responses to the latter being both qualitatively (thematic categories) and quantitatively (similar responses quantified) analysed.

钻石矿中的钻石被盗一直是南非矿主（世界第七大克拉钻石生产国）的一个长期问题。多年来，为了打击此类盗窃，采矿作业制定了各种措施，尤其是综合安全措施，并实施了若干技术辅助措施，以试图减少和/或杜绝采矿作业中的盗窃行为。这项研究的重点是发生在南非库里南钻石矿的钻石盗窃事件，旨在确定以情报为主导的技术解决方案是否有助于防止或减少钻石盗窃。然而，这种盗窃对钻石开采的盈利能力产生了相当大的影响。因此，Cullinan 的安全措施特别注重防止钻石从采矿作业中被盗。调查结果虽然广泛表明它们是有效的，但也揭示了可以改进的安全性和系统性差距。这些都集中在更有效地使用技术辅助工具上；通过协调共享收集到的信息，改善情报分析员和实地安全官员之间的合作关系，最终使线人系统更加主动、保护和奖励参与的线人。研究是通过现场观察进行的；仔细阅读由库里南钻石矿安全人员内部调查的钻石盗窃案卷宗（并由警方打开的案件卷宗证实）；