// That's third-hand evidence, Khandro. What would be known in the legal trade as "hearsay" (or even "hearsay, hearsay!) :-)//
well that is interesting because I heard from a friends daughter that there is something called the Hearsay Act ("or something yeah ?")
http://www.civillitigationbrief.com/2015/10/04/the-civil-evidence-act-the-absent-witness-and-witness-credibility-a-case-in-point/
bearing in mind it may not be admissible in criminal law
but MAY be admissible in civil law
and ..... immigration cases were civil the last time I looked ....
but you know I was only told
so all the above may be ... hearsay