[kiawe_fire]

Potentially anyone involved in the making of the report.

Each part of the process, from investigating and gathering facts, writing, and presentation, presents an opportunity for bias to be introduced, be it implicitly or explicitly.

[Zetice]

What phrase, if you had to choose one, would you describe the group of people who do this work? The work, as you clearly explain here, is how bias gets introduced?

Maybe, perhaps, news media?