71.   Police said a suspect who was picked up for questioning Thursday was arrested after tests showed traces of nitrates on him, indicating he had recently fired a gun.

72.   Police said tests showed traces of marijuana, Valium and two derivatives of Valium.

73.   Police told journalists that they were seeking knives showing traces of blood from the victims.

74.   She also said blood samples showed no trace of antibodies against anthrax.

75.   Samples from dead fish showed traces of the drug, the suit states.

76.   SFSU on Friday released preliminary findings of a study showing traces of mercury in a handful of items that have found their way back to the Hoopa tribe.

77.   She also said blood samples showed no trace of antibiotics against anthrax.

78.   State Department spokesman Richard Boucher had said Wednesday that preliminary tests showed two of five bags from the Vilnius embassy had shown traces of what appeared to be anthrax.

79.   State Department spokesman Richard Boucher had said Wednesday that preliminary tests showed two of five bags had shown traces of what appeared to be anthrax.

80.   Tests on an envelope found in a Berlin parking garage Wednesday also showed no trace of contamination.