This type of legal evidence is unverified, unofficial & not part of one's direct knowledge
[DOC] [TLE] hearsays - Memidex dictionary/thesaurus [PAR] "hearsays" is a plural form of "hearsay" (gossip): gossip (usually a mixture of ... 
information that was heard by one person about another | [law] evidence ... 
unverified, unofficial information gained or acquired from another and not part of 
one's direct knowledge.