(a) First, Roberts confessed on three separate occasions to the commission of the crime of importation of the cocaine, namely:
(i) in a conversation at Port Phillip Prison on 15 November 1999 with Firth, Rosenes and Hurley, Firth's notes of which counsel for Roberts had Firth read into evidence;
(ii) in the recorded interview conducted by Hurley and Firth (but not, in the principal and relevant part, Rosenes) on 16 November 1999 at Port Phillip Prison; and
(iii) in the 17-page statement dated 18 November 1999, taken on 16, 17 and 18 November 1999 by Firth (and also Rosenes on 16 November) at Port Phillip Prison and signed and "read back" (whilst being recorded on video tape) by Roberts.
(b) Secondly, evidence was led in the trial which was either contrary to or inconsistent with the evidence of Roberts that cocaine had not been obtained by him in Benin and had not been subsequently imported into Australia by him but had been, instead, provided to him by an unidentified male at the El Toro Motel on the morning of 11 September 1999, that contrary or inconsistent evidence being independent of Rosenes and consisting of at least the following:
(i) that Brand, while in the hotel in Benin, had seen one of the wooden plaques, which she said had some sort of detail on it looking like a map or postcard of Benin (her evidence as to this being impressive);
(ii) that Brand, while overseas and subsequently to seeing one of the wooden plaques, carried items of luggage which were consistent with their containing the plaques;
(iii) that the origin of the wood from which the eight wooden plaques (seven of which were intact or unopened at the time of the arrest of Roberts) were made was tropical Africa, three of the plaques bearing (under varnish) postcards depicting scenes from Cotonou, and that the cocaine was most likely of South American origin and very highly unlikely to have been manufactured synthetically in Australia;
(iv) telephone conversations recorded in telephone intercepts as follows:
CALL NO. DATE DESCRIPTION[157]
95 30 August 1999 Mohr telephones Cornelius and says that her husband is arriving that day and wants the same present.
99 30 August 1999 Mohr tells Roberts that she has done it all and he is to telephone Cornelius and all is prepared and that at 9 a.m. the next day he can pick up "all [his] presents".
519 4 September 1999 In response to a question from Mohr, Cornelius says that it is finished and Roberts has the "presents". He asks her to send money. She indicates it will be via Western Union. He gives her details of Roberts' changed return flights.
624 7 September 1999 Urbanec tells Roberts that he has sent the money and tells him to bring back a few figurines and to "make sure they are varnished, because otherwise they make trouble ...".
649 8 September 1999 Roberts tells Mohr, "They sewed that stuff together with a hot needle ... The varnish isn't, isn't properly dry".
655 9 September 1999 Cornelius tells Mohr that "eight presents" are being given.
23 10 September 1999 Roberts tells Mohr, "The eagle landed".
24 10 September 1999 Roberts tells Fraser, "The eagle has landed".
(v) Conversations recorded by listening devices, as follows:
16 August 1999 In Fraser's Office
Roberts tells Fraser he will come back and deliver "about 6 kilos minimum". Roberts and Fraser discuss what to do after "get[ting] through Customs". Roberts and Fraser discuss Roberts giving [Brand] $8,000.
11 September 1999 At Flat 4/6-8 Greig Court
Roberts tells Mohr, "It is 5.55." Mohr tells Roberts that she telephoned Cornelius and he told her that eight presents had been given by him to her husband.
(c) Thirdly, several other matters the subject of evidence were inconsistent with the defence relied on, namely:
(i) Roberts had (as he admitted in his evidence before the jury) previously given sworn evidence on a voir dire on 28 August 2001, in response to a question asked by his own counsel, that he did not, on 3 November 1999 at Port Phillip Prison, recognise Rosenes, whereas in his evidence before the jury he said that he had had eight to twelve meetings with Rosenes in order to arrange the incrimination of Fraser;
(ii) upon his arrival at Brand's residence on the afternoon of 11 September 1999 Roberts (as he said in his evidence) opened one of the eight wooden plaques, extracted a small portion of the cocaine contained in it, took the cocaine to Brand's flat and used at least some of it, although this cocaine, on the defence case, was not his to consume.
(d) Fourthly, if the sworn evidence given by Roberts was true, it necessarily meant that
(i) he had been prepared to engage in a course of conduct which put a number of innocent persons (including his wife Mohr and his friend Urbanec) at risk of being prosecuted for a serious drug offence;
(ii) he had made three detailed statements to the police falsely implicating his wife and his friend Urbanec in the commission of serious offences;
(iii) the person Roberts had sought to implicate falsely in the importation of cocaine (namely, Fraser) was the very solicitor he called for after he had been arrested and been afforded an opportunity to obtain legal advice; and
each of those matters defied belief.
(e) Finally, the very gist of the defence (that Rosenes was eager through Roberts to implicate Fraser falsely in the commission of a serious drug offence) was implausible and inherently incredible, for:
(i) it was particularly risky to engage Roberts, a person who was then unknown to Rosenes;
(ii) it was most unlikely that an intelligent and mature person could be improperly persuaded to engage in a course of conduct as expensive and sophisticated as that engaged in by Roberts in order to avoid being charged with an offence of possession in mid-June 1999 of a very small amount of cocaine;
(iii) it was most unlikely that Rosenes would provide $20,000 to Roberts in order to finance the overseas trip (and particularly so when, at a much lower cost, Roberts could be sent, for example, interstate);
(iv) it would have been much simpler for Rosenes simply to "plant" some drugs in Fraser's premises than to engage Roberts; and
(v) it was unnecessary for such a very large and very valuable quantity of cocaine to be provided to Roberts in circumstances where it was highly unlikely that Rosenes would be able to get it back.[158]