In the light of this query, I believe, it's fitting to understand how to process claims, assertions, declarations, speculations, etc..that people often make in any forum...
Overall, it's all about the question of Evidence...
We must know that, hearsay, does not constitute as "evidence" and is "not even admissible" in any courts of law...
Hence, it serves us well to not readily believe in any hearsay... It is better to research & verify claims or information, esp those with serious consequences...
Here's a good site that offers basic understanding about Evidence..
Accordingly, there are 4 types of evidence:
- Real evidence;
- Demonstrative evidence;
- Documentary evidence; and
- Testimonial evidence.
Real and demonstrative evidence are two of the four main types of evidence in a legal trial. Learn more about evidence and other related topics, by visiting FindLaw's section on Criminal Procedure.
www.findlaw.com