... to evolve...
... to go through a process...

Does this also apply to abstract subject? For instance

We have heard from Mr. X what process witness protection has gone through during the last 10 years in this country.

yes!
Although the sentence as a whole might benefit from alterations...

Idea:
"We heard from Mr. X about the (dramatic/interesting/challenging/...) process witness protection has gone through in this country over the past ten years."

cheers!