Originally posted by Victor
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Would you expect the CPS to say anything else? Like you, they think it's infallible. The report that came out of the review did not say the words you have quoted. I have the full review and this is the executive summary:-
A Review of the Science of Low Template DNA Analysis
Executive Summary
From our detailed review we find that the science supporting the delivery of
Low Template DNA (LTDNA) analysis is sound and that the three companies
(the Forensic Science Service Ltd, LGC Forensics and Orchid Cellmark Ltd)
providing this service to the Criminal Justice System have validated their
processes in accord with accepted scientific principles using both 28 and 34
PCR cycles for extracts containing less than 200 picograms (pg) of DNA. At
these levels, stochastic and inhibition effects have an impact upon the DNA
profiles produced and all those involved in this process have established
guidelines for profile interpretation. Work on interpretation is continuing and it
is for the Forensic Science Regulator to monitor this and to bring about some
standardisation in interpretation amongst all providers.
Now that suitable commercial analytical systems are available for the
quantification of low levels of DNA, it becomes important that all DNA samples
submitted for analysis under the Criminal Justice System must, as a matter of
best practice, be quantified before attempts are made to produce DNA
profiles.
Training both laboratory personnel and those involved in the recovery of DNA
samples from crime scenes requires to be standardised. It is for the Forensic
Science Regulator through a dialogue with all providers and ACPO to
establish what those standards should be, to implement them and to monitor
their application.
The use of DNA-free consumables both in the laboratory and for those
working at the crime scene is essential. Standards for these need to be set
and quality control mechanisms put in place to monitor the status of these
materials/chemicals.
Although used for a number of years we do not yet have any reliable measure
of the success rate of LTDNA analysis and this need to be corrected.
We have been made aware that there is concern by the forensic science
providers of the role of Police Laboratories established by the larger police
forces. This concern relates to the quality of work and their future role in the
provision of forensic science services. Additionally they have expressed
concern over the funding of forensic science. It is for the Forensic Science
Regulator to enter into a dialogue with ACPO to allay these concerns and /or
to develop mechanisms that can overcome any envisaged problems.
We have become aware that there is a desperate need for independent
research funding in order to advance the discipline of forensic science. Such
funding should be open to all on a competitive basis in the same way as the
government funded research councils, who are at present unable or unwilling
to finance any developments in this arena.
Finally, we believe that it is important for the Forensic Science Regulator to
monitor all documentation associated with accreditation and validation.
APRIL 2008 B. Caddy
G. R. Taylor
A.M.T. Linacre
Executive Summary
From our detailed review we find that the science supporting the delivery of
Low Template DNA (LTDNA) analysis is sound and that the three companies
(the Forensic Science Service Ltd, LGC Forensics and Orchid Cellmark Ltd)
providing this service to the Criminal Justice System have validated their
processes in accord with accepted scientific principles using both 28 and 34
PCR cycles for extracts containing less than 200 picograms (pg) of DNA. At
these levels, stochastic and inhibition effects have an impact upon the DNA
profiles produced and all those involved in this process have established
guidelines for profile interpretation. Work on interpretation is continuing and it
is for the Forensic Science Regulator to monitor this and to bring about some
standardisation in interpretation amongst all providers.
Now that suitable commercial analytical systems are available for the
quantification of low levels of DNA, it becomes important that all DNA samples
submitted for analysis under the Criminal Justice System must, as a matter of
best practice, be quantified before attempts are made to produce DNA
profiles.
Training both laboratory personnel and those involved in the recovery of DNA
samples from crime scenes requires to be standardised. It is for the Forensic
Science Regulator through a dialogue with all providers and ACPO to
establish what those standards should be, to implement them and to monitor
their application.
The use of DNA-free consumables both in the laboratory and for those
working at the crime scene is essential. Standards for these need to be set
and quality control mechanisms put in place to monitor the status of these
materials/chemicals.
Although used for a number of years we do not yet have any reliable measure
of the success rate of LTDNA analysis and this need to be corrected.
We have been made aware that there is concern by the forensic science
providers of the role of Police Laboratories established by the larger police
forces. This concern relates to the quality of work and their future role in the
provision of forensic science services. Additionally they have expressed
concern over the funding of forensic science. It is for the Forensic Science
Regulator to enter into a dialogue with ACPO to allay these concerns and /or
to develop mechanisms that can overcome any envisaged problems.
We have become aware that there is a desperate need for independent
research funding in order to advance the discipline of forensic science. Such
funding should be open to all on a competitive basis in the same way as the
government funded research councils, who are at present unable or unwilling
to finance any developments in this arena.
Finally, we believe that it is important for the Forensic Science Regulator to
monitor all documentation associated with accreditation and validation.
APRIL 2008 B. Caddy
G. R. Taylor
A.M.T. Linacre
You will no doubt see only positives and nothing that is critical of the overall process. In fact I hazard a guess that you will say I have just proven your point! That will say more about you than it does about me or LCN.
James
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