I work in the chemical industry and very often industries send chemical samples to third party test laboratories for analysis and producing test reports.
In some cases I find labs add a disclaimer of the following sort to their test reports:
"The content of this report is meant for information only and should not be used for advertisement, evidence or litigation."
What's the legal implication of this sort of disclaimer. Does it really make the output invalid for use in litigation? Is there any precedent on this sort of disclaimer.
Can a party unilaterally prohibit any of its output from use as evidence in litigation? Will the courts respect such disclaimers?