Book excerpt: This NATO-ASI installment is designed to provide an advanced overview for doctoral and post-doctoral candidates of the state-of-the-art technologies for bio-detection. The main objective of the work aims at providing readers with the latest developments necessary to successfully understand the CBRN Agents and their associated biotechnologies. The core methods focused on are mass spectrometry (including chromatographic and electrophoretic separation) and comparisons to spectroscopic, immunological and molecular analysis of chemical, biological and nuclear agents.