The present application does not focus, however, upon that vulnerability insofar as its existence might diminish Mr Morgan's credibility in the eyes of a jury at trial. It focuses, rather, on a proposition that the relevant police officers saw Mr Morgan, from the time they first began to look seriously at his position in the relevant scheme of things, as somebody who was on the outer rim, so to speak, of the criminal enterprise that they were investigating, and who, because of that fact, coupled with his perceived personal fragility, might be willing, if handled properly, to become a Crown witness.
That proposition is then developed into a further proposition, namely, that the relevant police officers in effect deliberately manipulated and exploited the perceived vulnerability of Mr Morgan so as to set him up as an available, and very useful, Crown witness."
41 In the course of his judgment, Sully J adverted to observations of Stephen and Aickin JJ in Bunning v Cross (1979) 141 CLR 54 at 75:
"There is no initial presumption that the State by its law enforcement agencies, will in the use of such measures of crime detection observe some given code of good sportsmanship or of chivalry. It is not fair play that is called in question in such cases but rather society's right to insist that those who enforce the law themselves respect it, so that a citizen's precious right to immunity from arbitrary and unlawful intrusion into the daily affairs of private life may remain unimpaired."
42 Although the decision in R v Ho provides no assistance to the Accused on the present application, I note the understandable recognition of Ireland J, at 42, of the importance "from the community's point of view of encouraging persons involved in criminal activity to afford assistance to authorities and to give evidence".
43 Sully J expressed the following conclusions on the application (pages 10-13):
"1. The police were perfectly entitled to approach Mr Morgan and to endeavour to interview him.