Industrialist: Environmentalists contend that emissions from our factory pose a health risk to those living downwind.
Conclusion
The factory's emissions present no health risk.
Evidence
The only people so far saying that it does present a health risk are local citizens, who aren't trained to judge whether these emissions are dangerous.
Evaluation
This commits the famous flaw of Unproven vs. Proven False, in which the lack of sufficient proof for claim X leads an LSAT author to erroneously conclude that claim X is false.
The testimony of the citizens is definitely not proof that the emissions do pose a health risk, since they're not trained to judge that. But the author is only allowed to conclude something with hedged wording, such as , or
Goal
Look for an answer calling out the Unproven vs. Proven False flaw or otherwise saying,