“PRECONDITIONS
The fact that a situation falls under one of the previously listed categories does not necessarily mean that discussing it constitutes constructive speech. Several conditions must be met.
The first set of conditions deals with verification of facts. It is absolutely forbidden to make any critical statement about a person on the basis of informations obtained through hearsay. Only through first-hand information may one assume tht a Jew’s character or behavior is wanting.
Even if one has witnessed seemingly unacceptable behavior, he must not hastily pass judgment on has occurred. An incident taken out of context can be terrible misleading, both as a reflection on an individual’s character as well as in determining who is right in a dispute between parties. Circumstances must be carefully investigated before one can be sure that he understands a situation correctly.”
(ibid, Day 43).