66 It remains the case, however, that the nature of a criminal trial in our system of justice is adversarial. While the prosecutor must not pick and choose the witnesses or evidence to be presented so as only to favour a conviction, but should present impartially the available, relevant credible evidence, whether it tends for or against conviction, and should recognise and not seek to hide any weaknesses of the prosecution case, the impartial role of the prosecution in our adversarial system does not preclude advocacy which fully tests the defence case and which presents the case for a conviction clearly and forcefully and in the best light which it fairly bears. It is the antithesis of the true role of the prosecutor to seek by trickery or the exploitation of prejudice or emotion to secure a conviction. There is no impropriety, nevertheless, in a fair and balanced presentation of relevant evidence even though it may evoke prejudice or emotion. Nor is a prosecutor required to try and remove from the presentation of the prosecution case, or to neutralise, those relevant aspects which evoke prejudice or emotion. As the authorities continue to emphasise, it is undue prejudice or emotion which is to be avoided; cf Lyons & Lyons v R (1992) 64 A Crim R 101 at 104.