13 Because of the high cogency of a guilty plea, I do not think that the approach to an application for leave to contradict or qualify an agreed fact, at least where a matter of expert evidence may be involved, requires the same degree of caution as an application to withdraw a guilty plea.
14 The defendant suggested an analogy with cases where the Crown was permitted to adduce evidence on an issue where the defendant had made admissions. Provision for such a situation is found in s 184(1) of the Evidence Act. Three decisions of the NSW Court of Criminal Appeal were cited: R v Smith [1981] 1 NSWLR 193, R v Popovic (unreported 25 March 1996) and R v JGW [1999] NSWCCA 116. In JGW it was held at [44] (omitting citations):
"I do not consider that, as a matter of principle, the Crown should be required to accept admissions in lieu of a record of interview, where the latter can be seen to contain evidence that qualifies as relevant, and where there is no occasion, otherwise, for a discretionary exclusion under ss 90, or 135 to 137 of the Act. It is well settled that the fact that formal admissions have been made does not, of itself, preclude the Crown from adducing further evidence on the issues which are the subject of the admissions. There is no reason for assuming that enactment of the Evidence Act has altered that principle. This ground has accordingly not been made good."
15 I think that these cases are too far removed from the subject of the present application to be of significant assistance.
16 The onus is on the party seeking leave to contradict or qualify agreed facts to make out a case for leave including as to the circumstances in which they came to agree the facts. An application to contradict or qualify agreed facts after considered negotiation and legal advice, particularly when made as late as the hearing, challenges the integrity of the agreed facts procedure and should be approached with caution. There has to be an incentive for parties to agree facts. To allow a party to back out of such an agreement easily does not encourage agreement in the first place. In a general sense, there is prejudice in denying to a party the right to rely on something that they reasonably thought was agreed.
17 The fact that there was a careful process whereby the statement of agreed facts was negotiated and ultimately agreed and signed by the parties' lawyers tends to weigh against giving leave. The process took about three months and may be summarised as follows. On 27 March 2009, the Court made a consent order that the parties file any statement of agreed facts by 2 April 2009 and that the matter be adjourned for mention on 3 April 2009. Between 27 March and 3 April, the parties' legal representatives discussed and negotiated a draft statement of agreed facts. On 3 April, the defendant's solicitors sent the prosecutor's lawyer an email stating that the defendant agreed to the filing of the attached statement of agreed facts. On that basis, the prosecutor filed that version of the statement of agreed facts. On 22 May 2009, senior counsel for the defendant (who was not the counsel appearing on this leave application) submitted to the court that the defendant had not agreed to the statement of agreed facts. In communications later that day between the prosecution's lawyer and the defendant's solicitor, the latter said that the defendant had not withdrawn its agreement from the statement of agreed facts. Still later in the day, the prosecutor's lawyer sent the defendant's solicitor a statement of agreed facts with an execution page and invited the defendant to execute it. On 28 March, the parties' lawyers had a number of phone conferences in which the defendant's solicitor said that the defendant did not agree to part of that statement of agreed facts. Correspondence passed between the lawyers concerning amendments. On 29 May the matter was before the court and the prosecutor's counsel brought the issue of the unresolved statement of agreed facts to the court's attention. Between 2 and 15 June there were communications between the parties lawyers concerning the statement of agreed facts. Finally, on 19 June, the prosecutor's lawyer received from the defendant's solicitors an executed, amended version of the statement of agreed facts, which he caused to be filed on 23 June 2009.