Code C- Identification by body samples and impressions Flashcards
Q: Where are the rules on identification found?
Code D- must be readily available at all police stations for consultation.
Q: Can DNA evidence alone be used to convict a suspect?
DNA evidence alone will not be sufficient for a conviction and there needs to be some supporting evidence to link the suspect to the crime eg: confession, witnessed in the vicinity.
Q: What is the purpose of taking identification samples?
To enable the process of DNA profiling. This involves an analysis of the sample taken from the suspect (first sample), an analysis of the sample taken from the crime scene or victim (second sample) then a comparison of the two. The matching process involves creating bands from each sample and then comparing the number of those bands which the two samples share. The more matches that exist between the first and sample samples, the less probability there is of that happening by chance. A good match between the two samples makes it more likely that it came from the suspect.
Q: Can DNA evidence alone be used to convict a suspect?
It will be for the prosecution to produce other evidence to the court which reduces the chance of a DNA sample belonging to someone other than the defendant.
Q: Case- DNA evidence and its reliability
Lashleigh- the sole evidence against D for a robbery was DNA evidence from a half-smoked cigarette. The DNA matched a sample taken from the suspect and would have matched the profile of 7-10 other males in the UK. Court held the significance of the DNA evidence depended critically on what else was known about the suspect- had there been evidence that the suspect lived in the area etc the jury could have found the case compelling. In the absence of any such supporting evidence, D could not be safely convicted.
Q: Case- DNA evidence and its reliability
FNC- Court noted that there is a difference between DNA found at an article at the scene and DNA which could only have been deposited during the actual commission of the crime by the offender. A very high DNA match for the latter must at least raise a case for him to answer.
Q: What is a speculative search?
Speculative search- search of the national DNA database.
Q: What are insufficient or unsuitable samples?
Insufficient or unsuitable samples- either insufficient or unsuitable in quantity or quality to provide info for a specific type of DNA analysis.
Q: What are the 2 different types of sample?
Intimate (s62 PACE)
Non-intimate (s63 PACE)
Both dealt with in Code D paragraph 6.
Q: What are intimate samples?
Paragraph 6.1 Code D
Intimate samples:
(a) an ‘intimate sample’ mean a dental impression or sample of blood, semen or any other tissue fluid, urine, or pubic hair, or a swab taken from any part of a person’s genitals or from a person’s body orifice other than the mouth
So the intimate orifices are the ear canal, nose, vagina and anus- NOT mouth!!
Q: What are non-intimate samples?
Paragraph 6.1 Code D
Non-intimate samples:
(b) A ‘non-intimate sample’ means:
(i) a sample of hair, other than pubic hair, which includes hair plucked with the root
(ii) a sample taken from a nail or from under a nail
(iii) a swab taken from any part of a person’s body other than a part from which a swab taken would be an intimate sample
(iv) saliva
(v) a skin impression which means any record, other than a fingerprint, which is a record, in any form and produced by any method, of the skin pattern and other physical characteristics or features of the whole, or any part of, a person’s foot or of any other part of their body.
Q: What are fingerprints?
Fingerprints are just fingerprints- they are NOT samples!
Q: Are footprints samples?
Yes- they are non-intimate
Q: What are identification intimate samples?
S62(1) PACE
1: Inspector’s authorisation
2: Written consent of suspect
3: Reasonable grounds
(1) an intimate sample may be taken from a person in police detention only—
(a) if a police officer of at least the rank of Inspector authorises it to be taken; and
(b) if the appropriate consent is given.
(2) An officer may only give an authorisation if he has reasonable grounds—
(a) for suspecting the involvement of the person from whom the sample is to be taken in a recordable offence; and
(b) for believing that the sample will tend to confirm or disprove his involvement
Q: Can intimate samples be taken from someone who is not in police detention?
S62 (1A) PACE
(1A) An intimate sample may be taken from a person who is not in police detention but from whom, in the course of the investigation of an offence, two or more non-intimate samples suitable for the same means of analysis have been taken which have proved insufficient—
(a) if a police officer of at least the rank of Inspector authorises it to be taken; and
(b) if the appropriate consent is given.