Premise:
" "Yesterday "Drew tried to think back to how he had felt yesterday about Topham's warning and how he himself had held the absurd belief that if Don Cazar was going to be in trouble, Drew himself wanted to be there."
Hypothesis: Topham had not warned Drew yesterday, so he didn't know.

no

Premise:
"Relation of input (influences on security) and output (safety) likely to be difficult to measure and to be both indirect and direct"
Hypothesis: Both security issues and safety issues are hard to measure both directly and indirectly,

yes

Premise:
"How dared he think that he had discovered what so many wiser and clever men had overlooked? "
Hypothesis: How could he think he was able to find things others couldn't?
yes