Sneak Analysis (SA) is a technique originating from work carried out by Boeing in the 1960s. Sneak Path Analysis (SPA) is a derivative of SA that focuses on the identification of latent, unintended paths that, under specific circumstances, can cause otherwise functional systems to exhibit undesired behaviours. SPA has not, however, been globally embraced by the safety engineering community. This is unfortunate, as there are some unique concepts and features of SPA (such as the explicit identification of systematic design flaws)that cannot be substituted by any other safety analysis techniques. This paper summarises a project that resulted in the development of a revised SPA procedure that can be implemented as an extension of the widely utilised Hazard and Operability (HAZOP) study. The procedure was applied to practical examples and was shown to be repeatable, efficient and applicable to a range of technologies.