The current project focuses on acquiring the fundamental data needed for a resonance Raman stand off detection system. These data include the resonance enhancement of the Raman signal over the wavelength regime of electronic transitions for the targeted explosives. A key factor for the realization of a stand off detection system is the signal enhancement that can be obtained using resonance Raman scattering. The project aim is to experimentally determine the resonance enhancement that can be achieved for a few targeted explosives. To begin with, enhancement factors for explosives in solution are established, after that, detailed quantification of enhancement factors for explosives in gas phase will follow. The last phase of the effort also includes out of the laboratory measurements of resonance Raman signatures to verify the usefulness of the proposed detection method in relevant environments. This report describes the work performed and the results of experiments on explosives in solution. An approximate total enhancement of 2500 times has been achieved for TNT. Higher enhancements are expected when gas phase enhancements are measured.