The Party Technical Advisor in Judicial Expertise
A technical professional chosen by a party to assist them opposite the court-appointed expert.
The party technical advisor is a professional freely appointed by a party — at that party's own expense — to assist them throughout the judicial expertise proceedings. Unlike the court-appointed expert, the technical advisor is not appointed by the judge. On technical matters, the advisor defends the interests of the party who engaged them, much as a lawyer does on legal matters.
Technical assistance throughout the proceedings
During the expert assessment operations:
- attends the expert assessment meetings and on-site visits organized by the court-appointed expert, alongside the party they represent;
- actively takes part in technical discussions, raises questions, and proposes additional investigations (surveys, tests, measurements);
- checks the methodological rigor of the expert's work (compliance with standards, measurement protocols, accuracy of records).
When drafting technical submissions:
- helps the party, in coordination with their lawyer, draft the submissions ("dires") addressed to the expert;
- challenges or supports, on strictly technical grounds, the expert's provisional positions;
- proposes costed elements of response regarding the assessment of defects and damages.
A technical counterbalance
The technical advisor acts as a counterbalance to the court-appointed expert, who alone remains formally entrusted with the assignment by the judge. This allows a party without in-house technical expertise:
- to understand and meaningfully discuss the expert's findings and analyses;
- to identify any errors, omissions, or approximations in the report;
- to rebalance the technical debate, particularly where the opposing party has its own in-house technical department or an experienced advisor.
Status and limits
- No independent procedural standing: the advisor is not a party to the proceedings and cannot act alone; they always intervene alongside the party they represent and, most often, in coordination with the lawyer.
- No decision-making power: the advisor can neither object to the expert's decisions nor compel an investigation; they can only request, through a formal submission, that the matter be referred to the judge in the event of a persistent disagreement.
- Fees are borne exclusively by the appointing party, unrelated to the deposit paid for the judicial expert assessment.
Practical value
Engaging a technical advisor is particularly recommended in complex cases (multiple defects, significant financial stakes, high technicality), where the absence of an in-house counter-assessment would leave the party passively subject to the court-appointed expert's conclusions — even though those conclusions will ultimately serve as the essential basis for the judge's decision.