Opinion evidence and bad character evidence Flashcards
are witness allowed to give their opinion?
Witness are not allowed to give their opinion because they can be prejudice themselves. We do not know what their intentions are. Their opinion might be ill-funded, mistaken and inconsistent
who can draw inferences from the facts?
Judge and jury are the ones meant to draw inferences from the facts
when can non-experts give their view?
Non-experts may give their view where it so intertwined with the facts they are relaying that it would be virtually impossible to separate the two. Witnesses may, for example, describe someone as in an agitated state.
what was held in the case of AG (Ruddy) v Kenny?
in AG (Ruddy) v. Kenny (1960) ILTR 185, the SC held that an ordinary witness may give an opinion on an accused’s fitness to drive in the context of drink driving.
While Healy is critical of this decision, he notes that the Court also suggested a witness could testify as to matters of identity, the apparent age of a person and speed of movement.
Certain statutory exceptions provide for non-expert testimony to be adduced in relation to subversive crime and organised criminal activity.
Section 3(2) of OAS (Amdt) Act 1972 allows a garda not below the rank of Chief Superintendent to state his belief that the accused was at a material time a member of an unlawful organisation. The constitutionality of this provision was upheld in People (AG) v. O’Leary
Section 7 of the CJ (Amdt) Act 2009 provides for the opinion of a member of AGS as to the existence of a particular criminal organisation.
examples of experts in criminal proceedings?
Experts commonly called upon in criminal proceedings include forensic scientists, pathologists, DNA analysts, and fingerprint experts.
is a garda an expert?
A garda is not normally considered to be an expert, although s/he may give information on the scale and nature of the drugs found in the possession of the accused (R v. Bryan)
is there a definition on who an expert is?
in Ireland, to date no set definition of an expert, statutory or otherwise, has been adopted, and it can be seen that the courts have adopted:
‘a very broad and flexible approach to what constitutes an expert for the purposes of giving expert evidence. The courts have continuously attempted to explain the parameters of what constitutes an expert witness, but have resisted setting out a formal definition’
Dangers of forensic evidence - Birmingham 6 case
Birmingham 6 case
6 irish men sentenced to life in prison
2 bombs and 21 people died
Expert witness was scientist - 99% sure that they were handling explosives.
Tests produced a positive result for nitrocellulose as well as nitroglycerine.
They got the substance on their hands from playing cards
Dangers of forensic evidence - Sally Clark
2 children died within a week from each other
She was convicted on their murder
Expert said that 1 in 73 million chance (chance of being innocent) that both children in the same family would die of sudden death syndrome.
Dangers of expert witness - earprint evidence
Murdered in her house with a pillow case
Ear print was found on the window
Policeman who had an interest in ear samples said that it was a criminal in the area known for robberies
Can ear prints be distinguishable between people ?
Reliability of ear evidence was thrown out
expert witness Reform - US position and english position
Us position - Daubert test - judge has to review the evidence before it is shown to the jury. Judges are not experts to determine if the evidence is reliable
English position - expert witness have duties - holds them more accountable and have to abide by them when they are giving evidence.
LRC said ireland should take Uk aproach ( 4 duties they suggested) and statue definition
what was held in the case of R v Davies?
i. A non-expert witness may testify that he observed the accused consume alcohol, but can’t testify that the accused was unfit to drive
ii. An expert may testify about the extent to which the accused was drunk, but not testify that the accused was unable to drive due to such drunkenness.
s.34 Criminal Procedure Act 2010
An accused must seek and obtain permission from the trial judge to adduce expert testimony. Expert here examine the evidence and gives his opinion as to what it means.
what was held in the case of R v Robb?
The proposed field of science must be sufficient well established to pass the ordinary test of relevance and
reliability. Established science and processions pose no issue – the field must be one where expertise can exist.
The essential question is whether the study and experience will give the witness an authority, and whether they have the requisite knowledge and experience.
Can’t be a soothsayer, witch doctor or amateur psychologist.
Trial judge must also direct jury that they are not bound to accept evidence – the issue remains with them to
decide.