Here's a breakdown:
When to use a comma:
* When "consistent with" introduces a non-essential clause: If the information following "consistent with" is additional but not crucial to the main meaning of the sentence, you use a comma.
* Example: "The findings of the study were consistent with, previous research on the topic."
* When "consistent with" is used as a transitional phrase: If "consistent with" is used to connect two separate ideas, you can use a comma.
* Example: "The company's policies are consistent with, its core values of fairness and transparency."
When to omit the comma:
* When "consistent with" is part of a phrase essential to the meaning of the sentence:
* Example: "The results were consistent with the hypothesis." Here, "consistent with the hypothesis" clarifies the meaning of "results."
* When "consistent with" is followed by a prepositional phrase:
* Example: "The decision was consistent with the company's strategic plan."
In short, use your best judgment. Ask yourself: Does the information following "consistent with" provide essential information or is it just additional detail?