I do, first-hand.

They're first-hand evidence. Elton?

You have had first-hand exposure.

Russia has first-hand experience of terrorism.

I have seen the difficulties first hand.

Argentina has experienced terrorism at first hand.

(b) Collection of information from sources with first-hand or quasi-first-hand knowledge of events;

(b) Collection of information from sources with first-hand or quasi-first-hand knowledge of events;

“(b) Collection of information from sources with first-hand or quasi-first-hand knowledge of events;

(b) Collection of information from sources with first-hand or quasi first-hand knowledge of events;