In order to obtain the expected study results, the choice of
material used for 3D modelling was a crucial factor. It consisted
largely of material that was originally of a completely different and
non-evidence-related purpose. The authors would even dare say
that ‘‘accidentally’’ registered data became more valuable than that
which was intentionally collected in the case.
Due to the nature of this data, the reconstruction of the crime
scene model raises a number of issues and requires caution with
regard to the credibility of obtained results.
For instance, a significant difficulty in using Google Maps1 is
the unsatisfactory quality of satellite photographs and their radial
displacement [17], as well as low reading precision of the valid
scale of materials. Moreover, the lack of insight into the creation
process and algorithms used in development of such publicly
accessible materials reveals them to be of demonstrative or only
complementary nature [18].
For the above reasons we should first assess the suitability and
validity of obtained data. This is why the authors verified and
increased the precision of the geometry and Google Maps1 scale
with base-maps of known and precise faithfulness. The correctness
of Google Street View1 archive photographs was validated with
current photographs. The images of modified or absent elements
were verified and created based on images of adjacent elements
not modified over time.
The degree of data precision must correlate with the needs and
nature of the study. This would not be the case with studies
involving ballistic expertise or visual availability, for example. The
described case did not require a high degree of data precision.
Another important issue is the constant updating of data in
public online databases. The authors obtained a set of archived
satellite photographs from the Google Maps1 database, from the
time of the crime and after its modification. These actions enabled
the authors to preserve data which some time after became
inaccessible due to database administrator actions. The generated
modelofthe courseofevents isacollection of archivedata that could
be used in further interdisciplinary specialist expertise [19,20].
Despite a lack of agreement among investigators specialised in
forensic and criminal analysis with regard to equity and fitness of
expertise in the 3D animation environment, the authors believe the
demonstrated case has proven the legitimacy of this expertise
creation. The authors claim the animations did not constitute a
basis for Court judgement, rather an element of evidence
investigation which facilitated the challenging of participant
testimonies, the selection of a probable version of the course of
events, as well as the connection of all material collected in the
case; in other words, the provision of a holistic view of the event.
In order to obtain the expected study results, the choice ofmaterial used for 3D modelling was a crucial factor. It consistedlargely of material that was originally of a completely different andnon-evidence-related purpose. The authors would even dare saythat ‘‘accidentally’’ registered data became more valuable than thatwhich was intentionally collected in the case.Due to the nature of this data, the reconstruction of the crimescene model raises a number of issues and requires caution withregard to the credibility of obtained results.For instance, a significant difficulty in using Google Maps1 isthe unsatisfactory quality of satellite photographs and their radialdisplacement [17], as well as low reading precision of the validscale of materials. Moreover, the lack of insight into the creationprocess and algorithms used in development of such publiclyaccessible materials reveals them to be of demonstrative or onlycomplementary nature [18].For the above reasons we should first assess the suitability andvalidity of obtained data. This is why the authors verified andincreased the precision of the geometry and Google Maps1 scalewith base-maps of known and precise faithfulness. The correctnessof Google Street View1 archive photographs was validated withcurrent photographs. The images of modified or absent elementswere verified and created based on images of adjacent elementsnot modified over time.The degree of data precision must correlate with the needs andnature of the study. This would not be the case with studiesinvolving ballistic expertise or visual availability, for example. Thedescribed case did not require a high degree of data precision.Another important issue is the constant updating of data inpublic online databases. The authors obtained a set of archivedsatellite photographs from the Google Maps1 database, from thetime of the crime and after its modification. These actions enabledthe authors to preserve data which some time after becameinaccessible due to database administrator actions. The generatedmodelofthe courseofevents isacollection of archivedata that couldbe used in further interdisciplinary specialist expertise [19,20].Despite a lack of agreement among investigators specialised inforensic and criminal analysis with regard to equity and fitness ofexpertise in the 3D animation environment, the authors believe thedemonstrated case has proven the legitimacy of this expertisecreation. The authors claim the animations did not constitute abasis for Court judgement, rather an element of evidenceinvestigation which facilitated the challenging of participanttestimonies, the selection of a probable version of the course ofevents, as well as the connection of all material collected in thecase; in other words, the provision of a holistic view of the event.
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