Laboratory techniques have been developed to analyze dischar^cnl oil 

 and to enable investigators to identify the source of the oil through a 

 fingerprinting process that combines the use of infrared absorption, 

 ultraviolet fluorescence, gas chromatography, and thin film 

 chromatography. While some of the forensic techniques are still in the 

 research and development stage, a major breakthrough occurred in 1975 

 when evidence obtained from this forensic analysis system was ac- 

 cepted in court to identify a vessel involved in a discharge off Key West. 

 Florida. Less sophisticated forensic analysis equipment, including 

 ultraviolet spectroscopy and then layer chromatography, is being pro- 

 vided to USCG Captains of the Port for rapid field analyses. These 

 analyses could be augmented, if necessary, by more complete analyses 

 of samples given to the USCG Research and Development Center Foren- 

 sic Analysis Laboratory. After an analysis has identified the source of 

 the discharged oil. penalty assessment procedures can be initiated 

 against those responsible for the pollution. 



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