Objectivity Principle Invoked for Expert Witness Independence
P · Principle
Individual
http://proethica.org/ontology/case/170#Objectivity_Principle_Invoked_for_Expert_Witness_Independence
Properties
Instance of
Applied to
Engineer A Dam Failure Forensic Investigation Engineer
Balancing with
Contractor's right to expert of choice
Forensic Expert Non-Advocate Status in Civil Litigation
Concrete expression
Engineer A's role as expert witness requires him to state opinions based on firsthand knowledge and facts of record; however, the prior retention by the government means his objectivity is structurally compromised because his firsthand knowledge was acquired in service of the adverse party, making genuine independent analysis impossible
Confidence
0.87
Importance
medium
Interpretation
Objectivity in expert witness testimony requires not merely subjective impartiality but structural independence from the interests of the parties; an engineer whose knowledge base was built in service of one party cannot credibly claim structural independence when testifying against that party
Invoked by
NSPE Board of Ethical Review
Tension resolution
The structural impossibility of objectivity when specialized knowledge was acquired for the adverse party reinforces the Section III.4.b prohibition
Source Evidence
Source text
As an expert witness, Engineer A would be required to state his opinion based upon his firsthand knowledge and on facts of record.
Text references
As an expert witness, Engineer A would be required to state his opinion based upon his firsthand knowledge and on facts of record.
The engineer was doing more than offering his expertise in engineering matters as an aid to a fuller understanding by the tribunal; he was in fact a paid advocate of a private interest in open conflict with the engineering opinions of the government.
There is a danger that Engineer A's opinions, based on his firsthand knowledge and his understanding of the facts of record, would touch upon privileged, specialized, and confidential knowledge gained while he was retained by the U.S. government.
TTL
@prefix case170: <http://proethica.org/ontology/case/170#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix proeth: <http://proethica.org/ontology/intermediate#> .
@prefix prov: <http://www.w3.org/ns/prov#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
case170:Objectivity_Principle_Invoked_for_Expert_Witness_Independence a proeth:Objectivity,
owl:NamedIndividual ;
rdfs:label "Objectivity Principle Invoked for Expert Witness Independence" ;
proeth:appliedto "Engineer A Dam Failure Forensic Investigation Engineer" ;
proeth:balancingwith "Contractor's right to expert of choice",
"Forensic Expert Non-Advocate Status in Civil Litigation" ;
proeth:conceptCategory "Principle" ;
proeth:concreteexpression "Engineer A's role as expert witness requires him to state opinions based on firsthand knowledge and facts of record; however, the prior retention by the government means his objectivity is structurally compromised because his firsthand knowledge was acquired in service of the adverse party, making genuine independent analysis impossible" ;
proeth:confidence "0.87" ;
proeth:discoveredincase "170" ;
proeth:discoveredinpass "2" ;
proeth:discoveredinsection "discussion" ;
proeth:firstdiscoveredat "2026-03-01T21:06:41.468366+00:00" ;
proeth:firstdiscoveredincase "170" ;
proeth:generatedattime "2026-03-01T21:06:41.468366+00:00" ;
proeth:importance "medium" ;
proeth:interpretation "Objectivity in expert witness testimony requires not merely subjective impartiality but structural independence from the interests of the parties; an engineer whose knowledge base was built in service of one party cannot credibly claim structural independence when testifying against that party" ;
proeth:invokedby "NSPE Board of Ethical Review" ;
proeth:principleclass "Objectivity" ;
proeth:sourcetext "As an expert witness, Engineer A would be required to state his opinion based upon his firsthand knowledge and on facts of record." ;
proeth:tensionresolution "The structural impossibility of objectivity when specialized knowledge was acquired for the adverse party reinforces the Section III.4.b prohibition" ;
proeth:textreferences "As an expert witness, Engineer A would be required to state his opinion based upon his firsthand knowledge and on facts of record.",
"The engineer was doing more than offering his expertise in engineering matters as an aid to a fuller understanding by the tribunal; he was in fact a paid advocate of a private interest in open conflict with the engineering opinions of the government.",
"There is a danger that Engineer A's opinions, based on his firsthand knowledge and his understanding of the facts of record, would touch upon privileged, specialized, and confidential knowledge gained while he was retained by the U.S. government." ;
proeth:wasattributedto "Case 170 Extraction" ;
prov:generatedAtTime "2026-03-01T21:17:58.665649"^^xsd:dateTime ;
prov:wasGeneratedBy "ProEthica Case 170 Extraction" .
Metadata
Extraction details
Discovered in case
170
Discovered in pass
2
Discovered in section
discussion
First discovered
2026-03-01T21:06:41.468366+00:00
First case
170
Generated
2026-03-01T21:06:41.468366+00:00
Attributed to
Case 170 Extraction
Generated
2026-03-01T21:17:58.665649
Generated by
ProEthica Case 170 Extraction