This publication presents the outcome of an IAEA coordinated research project (CRP), which served as a technical forum for sharing international experiences in the field of nuclear forensics with a focus on improved procedures and techniques, optimization of nuclear forensic analysis, preservation of evidence, and provision of support to Member States. The CRP results address both technical needs to develop the discipline of nuclear forensics as well as to promote confidence in the application of analytical methods and understanding of the nuclear fuel cycle applied to nuclear forensics. Topics include instrumentation and field work for evidence collection, novel laboratory methods supporting a nuclear forensic examination, and modelling for interpretation of nuclear forensic results.