ABSTRACT

All events are subject to individual perception or recollection. Misconceptions or untruths can often be intermingled with the truth when witnesses provide testimony in court. This will certainly be evident when giving consideration to written submissions and witness accounts of a criminal incident, if you are acting as expert witness for the prosecution or for the defence. Both sides can be expected to provide different interpretations of what took place as fact or reality, although in truth, the only inescapable ‘fact’ in this life is that at some point in the future we all die. When an expert witness is considering such matters he should adopt the underlying principles of a Bayesian approach.