The viewers may hear testimony, receive evidence and make independent investigation as they deem appropriate, without being bound by formal rules of evidence.
26 Pa.C.S. § 1101
Viewers' hearing
Known as the Eminent Domain Code
The act spans §§ 26-101 to 26-907 (63 sections).
Official source: Pennsylvania General Assembly. Reproduced from public-domain Pennsylvania statutes; confirm against the official source for the current text. Not legal advice.