Texas Forensic Science Commission Licensing
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Terms in this set (224)
LIMS Laboratory Information Management System
NDIS National DNA Index System
CODIS Combined DNA Index System
AFIS Automated Fingerprint Identification System
Non-reported sexual assault Evidence is stored for a maximum of five years
Destructive Testing -non-destructive testing should be carried out first
-Notify the client if destructive testing is done
-Leave enough substance for future testing
,Data-defensibility -a process that provides sufficient assurance, both
legal and technical, that assertions made about a
sample and its measurable characteristics can be
supported to an acceptable level of certainty
Seven parts:
-Sample chain of custody
-Project setup and preparation
-Measurement methods
-Sample collection methods
-Sample processing and handling methods
-Data recording
-Quality control and assurance procedures
Is custody documentation alone No. Data-defensibility requires more than chain of
sufficient for legal purposes? custody.
How do you prevent bottle closures Electrical (vinyl) tape can be applied before
from loosening in transit? custody seals are applied.
How do you ship evidence in mail? -use padlocks or custody seals on shipping
containers
-keys are shipped separately or kept at the lab
-a separate custody record should be kept for both
the key and the evidence
Upon receipt of the sample what Temperature should be recorded, update the chain
should be done? of custody information, check seals, check pH of
samples if there was a pH adjustment that was done
to preserve the samples
LIMS: Similar evidence items -can be collected as a group and assigned a single
designator
-ex: broken glass in one area; remains of firework
paper
, LIMS guidelines -Use sequential identifiers for evidence
-Give each scene a separate identification number
Spoliation of evidence The loss, destruction, or material alteration of an
object or document that is evidence or potential
evidence in a legal proceeding by one who has the
responsibility for its preservation
Reed v State -sexual assault and murder
-judgement affirmed
-defendant wanted post conviction DNA testing
based on new advances in touch DNA (Criminal
Procedure Chapter 64)(Locard's principle)
-evidence items were not separated in storage and
were unsealed
-a number of people at trial handled the evidence
without gloves
-chain of custody was not sufficient for the
evidence because of the poor evidence handling
procedures
-some items requested were not suitable for DNA
testing because they could not prove there was
biological material on them
-defendant failed to prove no conviction would
have resulted if this evidence was retested
-failed to prove that this was not a delay tactic
Exam | QUESTIONS AND ANSWERS _ LATEST
UPDATE _ INSTANT DOWNLOAD
Save
Terms in this set (224)
LIMS Laboratory Information Management System
NDIS National DNA Index System
CODIS Combined DNA Index System
AFIS Automated Fingerprint Identification System
Non-reported sexual assault Evidence is stored for a maximum of five years
Destructive Testing -non-destructive testing should be carried out first
-Notify the client if destructive testing is done
-Leave enough substance for future testing
,Data-defensibility -a process that provides sufficient assurance, both
legal and technical, that assertions made about a
sample and its measurable characteristics can be
supported to an acceptable level of certainty
Seven parts:
-Sample chain of custody
-Project setup and preparation
-Measurement methods
-Sample collection methods
-Sample processing and handling methods
-Data recording
-Quality control and assurance procedures
Is custody documentation alone No. Data-defensibility requires more than chain of
sufficient for legal purposes? custody.
How do you prevent bottle closures Electrical (vinyl) tape can be applied before
from loosening in transit? custody seals are applied.
How do you ship evidence in mail? -use padlocks or custody seals on shipping
containers
-keys are shipped separately or kept at the lab
-a separate custody record should be kept for both
the key and the evidence
Upon receipt of the sample what Temperature should be recorded, update the chain
should be done? of custody information, check seals, check pH of
samples if there was a pH adjustment that was done
to preserve the samples
LIMS: Similar evidence items -can be collected as a group and assigned a single
designator
-ex: broken glass in one area; remains of firework
paper
, LIMS guidelines -Use sequential identifiers for evidence
-Give each scene a separate identification number
Spoliation of evidence The loss, destruction, or material alteration of an
object or document that is evidence or potential
evidence in a legal proceeding by one who has the
responsibility for its preservation
Reed v State -sexual assault and murder
-judgement affirmed
-defendant wanted post conviction DNA testing
based on new advances in touch DNA (Criminal
Procedure Chapter 64)(Locard's principle)
-evidence items were not separated in storage and
were unsealed
-a number of people at trial handled the evidence
without gloves
-chain of custody was not sufficient for the
evidence because of the poor evidence handling
procedures
-some items requested were not suitable for DNA
testing because they could not prove there was
biological material on them
-defendant failed to prove no conviction would
have resulted if this evidence was retested
-failed to prove that this was not a delay tactic
