Yeah but its kinda like independent auditors that review a firms financial documents; e.g. an Income Statement and Balance Sheet. The firm's management can state that earnings were x, but the Independent Auditors can give their opinion that they disagree.
Most likely it will boil down to a case of the Thais saying they have the real culprits and the Brits saying we are not convinced.
Too much face involved now and the Thais will never concede that errors were made.