The preservation and imaging of knotted exhibits

Abstract The importance of well-preserved knots and ligatures, in conjunction with clear and unambiguous photographs and other recording techniques, is demonstrated using comparatively flawed and idealized images of mock exhibits. The identification of wends (working ends), stands (standing parts), severed ends, and unobstructed crossing points is critical. Further, determining the lengths of segments and the circumferences of loops, along with rope or cord diameters, can be of assistance during an analysis. Subtle details, such as the interrelationship of various wraps and complex entanglements, can be maintained when employing careful removal procedures. Any information that might be acquired from the knotted evidence could inform subsequent determinations and conclusions. Carefully preserved exhibits and recorded details may assist the analyser of knots and ligatures in establishing the tying sequence, the purpose of those knots, the tying habits and relative skill level displayed, and possibly the number of tiers. Case-specific issues, such as whether the knotted evidence points to homicide or suicide, may be clarified.