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COURT RESUMED AND Judge Hoffman asked the People to call their next witness

Yuki called Charles Clapper, director of San Francisco’s forensics lab After Clapper had been sworn in, Yuki asked him preliround in forensics Then she asked hie laboratory

Yuki asked, “Were there bo materials in Mr Grant’s lab?”

“Yes We found implements and chemicals that could be used to make explosives Quarter sticks of dynareen stuff that’s called rocket fuse, and chemical colorants often used for fireworks Glass jars of BBs and nails Assorted lengths of pipe”

Under Yuki’s questioning, Clapper testified that in his opinion the principal bomb used in the as-filled container and ignited by a detonator, either remotely or with a preset timer

He said, “It wouldn’t takeThat’ll cause what’s called a high-order explosion that will disintegrate glass, any kind of paneling

“It brought the roof down,” Clapper said, “and the bowstring trusses crushed those second-story pedestrian bridges The smaller bomb was probably C-4 with a ti the center dome in order to finish off that whole house of cards”

“Could that second bomb have been timed to kill fire and rescue?”

“Secondary blasts are often set for that purpose”

Yuki asked, “Were these two types of bombs described and illustrated in Mr Grant’s notebook?”

“Yes Chapter 9 was about the use of C-4 and other plastic bombs Chapter 14 was devoted to compression bombs”

“In your opinion, was Mr Grant capable of building and setting such bombs?”

“In my opinion, he could have practically done it blindfolded”

Yuki asked if remains of the bombs had been found at the scene, and Clapper answered, “A fire extinguisher with both ends blown off was recovered from the bay off Pier 15 That would be the remains of a compression bomb The C-would have vaporized without a trace”

Yuki thanked Clapper and turned him over to the defendant