экспертное заключение(письменное: Finally, the "traditional mechanisms for determining questions of foreign law by means of expert evidence have been shown on many occasions to be costly, prone to delays and other difficulties and, most significantly, just plain wrong too often.4uzhoj)
комиссионная экспертиза(Jan 2006 – For the majority of the court, the combination of the expert panel evidence and the decision by the French court to limit its restrictions ... bbc.co.ukAlexander Demidov)