The report describes the work that was done as a pre-study in the security research program that was financed by Vinnova, KBM and FMV. Anna Pohl has visited professor John Smith's laboratory att King's College London in order to investigate the possibilities to set up an activity for NQR-detection of explosives at FOI. In the report we present a specification of the equipment and components needed. Andreas Jakobsson presents the signal processing activity that has been done on NQR-data. Signal processing is a critical component in NQR as the signal is very weak and a weak signal require a longer detection time. An overview of the most promising detection methods available today is presented by Sara Wallin. A conclusion is that it is difficult to detect all types of explosives with only one method therefore we suggest a group of different sensors working together.