A leave question has no answer until you know which authority governs: federal law, state law, or the company handbook. The handbook is usually the closest match to what someone asks. Where it promises less than the law requires, the closest match is the wrong answer. Working out which layer wins is the hard part. Retrieval only feeds it.
The decision log records every choice behind this, including the experiments that failed and the features that were built, measured, and then dropped.