In recent years there have been two periods of accelerated development of biological agent detection. The first started in 1991 when coalition forcesfaced the threat of being attacked with biological warfare agents. The second is today, after incidents of the anthrax letters. These efforts have resulted in several detectors that are user friendly and designed for active service. The report describes methods and techniques used for detection of biological warfare agents. Several instruments are also described. The information is based on specifications from the manufacturers or retailers, and in some cases articles and reports. A ranking has not been done neither in the selection of selection of instruments to be presented in the report, nor among the instruments within the report.