Category List


Tag List

Reporter Injured (1)
National News (1)
Dr Judy Melinek (1)
Video Analysis (2)
Litigation (1)
Shadow Analysis (1)
Wire Strike (1)
Old Way vs Best Way (1)
Plaintiff (2)
Mistrial (1)
Expert's Preparation (1)
2014 Annual Conference (1)
professional (1)
CCSF (1)
Incident and Exemplar Vehicles (1)
Eye Witness (2)
Specific Calculations (1)
Surgical Animation (1)
Capital Crime (1)
First Degree Murder (1)
Photogrammetry (3)
Shadow (1)
Seoul Korea (1)
.45 Caliber (1)
CAC (1)
TImeline from Audio (1)
Michael Brown (1)
Explosion (1)
The Working Model (3)
Accidental Shooting (1)
animation (1)
forensic (1)
scientific evidence (1)
Nighttime Accident Reconstruction (2)
Forensic Expert Witness Association (1)
$84,000,000 Verdicts (1)
by eye (1)
Emergency Deployment Recorders (1)
911 Call (1)
deposition (1)
Testimony (3)
Expert Witness (3)
Surgical (1)
Ballistic Trajectory Analysis (7)
Illustrate Driver's Eye View (1)
California District Attorneys Association (1)
Camera Lense Distortion (1)
Laser Assisted Photogrammetry (2)
David vs. Goliath Case (1)
crash scene mapping (1)
Gunshot Wound Modeling (3)
Variances (1)
Shooting (1)
Determine Degree of Error (1)
Crosswalk (1)
1000 Hours (1)
FEWA Secretary (1)
Visibility Studies (2)
Driver's Eye View Obstruction (3)
Downstream Benefits of 3D Laser Scanning (1)
Monte Carlo Method (1)
Nieto (1)
Radio Traffic (1)
Visible Geometry (1)
Craig Fries (1)
nighttime visibility study (3)
New Forensic Technology (1)
evidence documentation (2)
Eye (1)
reconstruction analysis (2)
forensic consultant (1)
Vehicle 3D Laser Scan (1)
Personal Injury (1)
Radio Traffic Audio (1)
Reconstruction (1)
Guilty Verdict (1)
sacramento settlement (1)
World Forensic Festival (1)
Defense (2)
collaborative (1)
Medical Animation (1)
Officer Involved Shooting (3)
402 Hearing (1)
forensic mapping (1)
News Van (1)
CNN (1)
CDAA (1)
Trajectory Rods (2)
7.6 Mile Pursuit (1)
Expert's Analysis (1)
film (1)
Timing and Location of Evidence (1)
Laser Scanning (3)
Ballistic Study (3)
Muni Bus On-Board Camera System (1)
Cross Examination (2)
Demonstrative Exhibits (1)
Ballistics Analysis (5)
largest infant death settlement in california (1)
forensic expert (1)
Determine Driver's Eye View (2)
Video Alignment (1)
Physical Evidence (1)
CACLD (1)
Single Vehicle Accident (1)
Cone of Uncertainty (1)
Trace Back Analysis (1)
consultant (1)
Power Line Wire Strike (1)
Marco Topete Murder (2)
Complete Analysis (1)
Body Camera (1)
3 (1)
Driver's Eye Video (4)
Crosswalk in Shadow (1)
Forensic Science International (1)
Crush Analysis (1)
Complex Accident Scene Reconstruction (3)
Fieldwork (1)
Sight Obstructions (1)
3D Animation and Video Compositing (3)
Sam Dubose (1)
Analysis (1)
Construction Worker (1)
northern california chapter (1)
Litigation Declarations (1)
Exhibits Foundation (1)
CalTrans (1)
California Association of Criminalists (1)
Camera Lense Field of View (1)
Construction Accident (1)
Radiological (1)
Ferguson MO (1)
Bus vs. Pedestrian (1)
GPS Analysis (1)
Error Analysis (1)
3D Working Model (18)
hot topic (1)
Side Bars (1)
Criminalist (1)
Vehicle Crush Analysis (1)
3D Laser Scanning (18)
Measurements (1)
infant death settlement (1)
California Association of Crime Lab Directors (1)
AR15 (3)
FEWA (1)
Medical (1)
CA2RS (1)
Objections (1)
Ray Tensing (1)
San Francisco Intersection (2)
9.75 million (1)
Laser Scan (4)
Nieto Verdict (1)
Forensic Animation (1)
Nighttime Video (2)
ISO 17020 (1)
Autopsy Report (2)
3D Animation (10)
3D Gunshot Wound Path Model (6)
Exemplar Life Sized Intersection (1)
California Association of Accident Reconstruction Specialists (1)
Professional Association (1)
accident reconstruction (2)
Assault Rifle (2)
3d Visualization (6)
Operator Liability (1)
3D crime scene mapping (2)
seachao (1)
Peer-Reviewed (2)
Ohio vs Tensing (1)
Witness Stand (1)
Video Capture Frame Rate (1)
Shooter's Location (1)
Witness Testimony (1)
Photometry (2)
OIS (1)
South Lake Tahoe (1)
.223 (1)
Trace back to shooter's location (1)
7 Days on Witness Stand (1)
Animation over Video (1)
Excellent Presentations (1)
body camera for deputies and officers (1)
Trajectory (1)
911 Call Audio (1)
3D Animation over Nighttime Video (2)
CDAA Winter Conference (1)

Tag Cloud

San Francisco Intersectionevidence documentationPlaintiffMedicalBody Camera3d Visualization3D Working ModelTrajectory Rods3D Animation and Video CompositingDriver's Eye VideoDr Judy MelinekShootingNews VanBallistics AnalysisVideo Capture Frame Rate9.75 millionLaser Assisted PhotogrammetrySam DuboseShadow Analysisreconstruction analysisExcellent PresentationsEye WitnessCDAA Winter ConferenceCrosswalkVehicle Crush Analysis911 CallNietoCalifornia Association of Accident Reconstruction SpecialistsOISExemplar Life Sized Intersectioninfant death settlementError Analysis2014 Annual ConferenceMonte Carlo MethodDavid vs. Goliath CaseBallistic Trajectory AnalysisISO 17020National NewsMichael BrownPhysical EvidenceSurgicalhot topic3D AnimationPeer-ReviewedTrajectoryForensic AnimationprofessionalAccidental ShootingExpert's PreparationCriminalist3D Gunshot Wound Path ModelTestimonyTiming and Location of EvidenceVisible GeometryFEWA SecretaryReconstructionGuilty VerdictLaser ScanVideo AnalysisCone of UncertaintyCraig FriesCamera Lense DistortionExplosionThe Working ModelMuni Bus On-Board Camera SystemIncident and Exemplar Vehiclesscientific evidence1000 HoursMeasurementsSeoul KoreaWire StrikeConstruction WorkerPersonal InjurycollaborativeCamera Lense Field of ViewCDAANighttime Accident ReconstructionExhibits Foundationforensic mappingWitness StandGunshot Wound Modeling3D crime scene mappingbody camera for deputies and officers7 Days on Witness StandAssault RifleDemonstrative Exhibitsnighttime visibility studyCalifornia Association of CriminalistsAR15Reporter InjuredVehicle 3D Laser ScanEmergency Deployment Recorders3D Laser ScanningSide BarsDetermine Degree of ErrorCNNOperator LiabilityLaser ScanningNieto VerdictAutopsy ReportanimationseachaoBallistic StudyEyeCrush AnalysisAnalysisforensic expertShadowcrash scene mappingComplete AnalysisShooter's Locationfilmdepositionnorthern california chapter$84,000,000 VerdictsExpert's AnalysisGPS AnalysisFieldworkBus vs. PedestrianconsultantLitigation DeclarationsDetermine Driver's Eye ViewRay TensingForensic Expert Witness AssociationVideo Alignmentsacramento settlementDefenseVariancesSouth Lake TahoeMarco Topete MurderExpert WitnessCACFerguson MOSpecific CalculationsAnimation over VideoDownstream Benefits of 3D Laser Scanning.45 CaliberFirst Degree MurderCrosswalk in ShadowVisibility StudiesforensicMedical AnimationFEWA911 Call AudioIllustrate Driver's Eye View402 Hearing3D Animation over Nighttime VideoPower Line Wire StrikeConstruction AccidentTImeline from AudioCA2RSForensic Science Internationallargest infant death settlement in californiaNew Forensic TechnologyPhotometryWitness TestimonyMistrialComplex Accident Scene ReconstructionPhotogrammetryObjectionsRadio TrafficCalTransOld Way vs Best WayTrace back to shooter's locationLitigationSight ObstructionsWorld Forensic FestivalProfessional AssociationCCSFCalifornia District Attorneys AssociationRadio Traffic AudioSurgical AnimationNighttime VideoDriver's Eye View Obstructionby eyeSingle Vehicle Accident7.6 Mile Pursuitforensic consultantCACLDRadiologicalCalifornia Association of Crime Lab DirectorsCross ExaminationTrace Back Analysis3accident reconstructionOfficer Involved Shooting.223Capital CrimeOhio vs Tensing


Archive

Blog Search

PSI Instrumental in Successful $84,000,000 Verdicts

PSI was instrumental in two recently successful verdicts equaling $84,000,000. Carpio vs. Aubin for $28,000,000 and Anderson vs. CalTrans for $56,000,000. Both of these cases featured 3D Laser Scanning to recreate the scene and driver's eye video to recre…
Carpio vs. Aubin - $28,000,000 Verdict against Caltrans  The scenario for this case is a pedestrian was struck at night in a poorly lit crosswalk on a freeway onramp. Using our… http://precisionsim.com/blog/2017-blog-posts/psi-mar-2017-blog-posts/psi-instrumental-successful-84000000-verdicts/

A New Peer Reviewed Article for 2017

PSI's CEO Craig Fries, are co-authored a paper that has been accepted in the peer-reviewed Forensic Science International: Gunshot Wound Trajectory Analysis Using Forensic Animation to Establish Relative Positions of Shooter and Victim.
PSI's CEO Craig Fries, are co-authored a paper that has been accepted in the peer-reviewed Forensic Science International: Gunshot Wound Trajectory Analysis Using Forensic… http://precisionsim.com/blog/2017-blog-posts/jan-2017-blog-posts/new-peer-reviewed-article-2017/

Reconstruction of Shooting Using Audio for a Timeline

In this day and age, it seems that just about every event is captured by video either via surveillance cameras or cell phones. Once a video’s frame rate is established it is not difficult to create a timeline of events. However, in this case we don’t have…
In this day and age, it seems that just about every event is captured by video either via surveillance cameras or cell phones. Once a video’s frame rate is established it is not… http://precisionsim.com/blog/2016-blog-posts/jul-2016-blog-posts/reconstruction-shooting-using-audio-timeline/

Reconstruction of a Fatal Accidental Shooting

A 20-year-old man was ordered to stand trial for murder in connection with the December 8, 2014 shooting death of his mother at their home near Lake Berryessa in Napa County, California. Joseph Brooks Conkright, known as Brooks, told authorities that he a…
A 20-year-old man was ordered to stand trial for murder in connection with the December 8, 2014 shooting death of his mother at their home near Lake Berryessa in Napa County,… http://precisionsim.com/blog/2016-blog-posts/jun-2016-blog-posts/reconstruction-fatal-accidental-shooting/

Reconstruction of a Power Line Wire Strike Event

A television news van operator and a news reporter, (the plaintiff in this case) were late arrivals to cover a public service event put on by the local police department. Upon arrival, the news van carrying the reporter has limited options for parking nex…
A television news van operator and a news reporter, (the plaintiff in this case) were late arrivals to cover a public service event put on by the local police department. Upon… http://precisionsim.com/blog/2016-blog-posts/may-2016-blog-posts/reconstruction-powerline-wire-strike-event/

PSI Case Study: Construction Accident Reconstruction

Sometimes, the benefit of creating a virtual 3D Working Model lies in the ability to perform analyses within the computer that simply cannot be performed within the real world scene. Reconstruction of accidents that occurred during construction of a proje…
Sometimes, the benefit of creating a virtual 3D Working Model lies in the ability to perform analyses within the computer that simply cannot be performed within the real world… http://precisionsim.com/blog/2016-blog-posts/may-2016-blog-posts/psi-case-study-construction-accident-reconstruction/

Complex Reconstruction of a Single Vehicle Accident

3D Laser Scanning is PSI’s go-to tool for accurately documenting large and complex accident and crime scenes for many reasons. As illustrated in previous posts, often the primary benefit is the ability to preserve a complex scene and all of its physical e…
3D Laser Scanning is PSI’s go-to tool for accurately documenting large and complex accident and crime scenes for many reasons. As illustrated in previous posts, often the primary… http://precisionsim.com/blog/2016-blog-posts/apr-2016-blog-posts/complex-reconstruction-single-vehicle-accident/

Verdict: Guilty of First Degree Murder 3D Laser Scanning and GPS Analysis

On Thursday, Sept. 26, 2013 a jury found the 38-year-old Reno man guilty of murder and seven other felonies stemming from a car chase that ended in a hail of bullets from Wallin-Reed’s AR-15 assault rifle. Gregory Chad Wallin-Reed will likely spend the re…
On Thursday, Sept. 26, 2013 a jury found the 38-year-old Reno man guilty of murder and seven other felonies stemming from a car chase that ended in a hail of bullets from… http://precisionsim.com/blog/2015-blog-posts/nov-2015-blog-posts/verdict-guilty-first-degree-murder-3d-laser-scanning-and-gps-analysis/

Vehicle Crush Analysis with Laser Scanning

In the analysis of vehicle accidents, one of the most important sources of insight is the physical evidence left behind in the form of vehicle deformation, often referred to as “crush”. The amount and location of the damage to the vehicles exterior and in…
In the analysis of vehicle accidents, one of the most important sources of insight is the physical evidence left behind in the form of vehicle deformation, often referred to as… http://precisionsim.com/blog/2015-blog-posts/oct-2015-blog-posts/vehicle-crush-analysis-laser-scanning/

California Case Sets Important Precedent for Leica ScanStation Data as Scientific Evidence

Julia Bertoli was crossing an intersection with three high school friends in Sebastopol, Calif., on June 3, 2009, when the 15-year-old was struck by a car. The impact—which threw Bertoli approximately 30 feet in the air and 40 feet down the roadway—result…
Julia Bertoli was crossing an intersection with three high school friends in Sebastopol, Calif., on June 3, 2009, when the 15-year-old was struck by a car. The impact—which threw… http://precisionsim.com/blog/2015-blog-posts/aug-2015-blog-posts/california-case-sets-important-precedent-leica-scanstation-data-scientific-evidence/

3D Working Model - Shadow Analysis

PSI’s use of the 3D Working Model has provided us with a wide array of opportunities to perform very precise analyses and illustrate the results at trial. In a recent case, PSI employed the Working Model and 3D Laser Scanning to analyze and illustrate the…
PSI’s use of the 3D Working Model has provided us with a wide array of opportunities to perform very precise analyses and illustrate the results at trial. In a recent case, PSI… http://precisionsim.com/blog/2015-blog-posts/jul-2015-blog-posts/3d-working-model-shadow-analysis/

Caught in the Act! Part Three

3D Laser Scanning – Determining & Illustrating Driver Eye View Obstructions: In the reconstruction of vehicle accidents, particularly vehicle versus pedestrian cases, one of the issues that often arises is the portion of the scene that the pedestrian w…
3D Laser Scanning – Determining & Illustrating Driver Eye View Obstructions: In the reconstruction of vehicle accidents, particularly vehicle versus pedestrian cases, one of the… http://precisionsim.com/blog/2015-blog-posts/mar-2015-blog-posts/caught-act-part-three/

Caught in the Act! Part Two

3D Laser Scanning – Downstream Benefits for Complex Litigation - At PSI, our method in analyzing complex crime and accident cases starts with creating the 3D Working Model. By combining an accurate 3D model of the environment, vehicles and actors with …
3D Laser Scanning – Downstream Benefits for Complex Litigation At PSI, our method in analyzing complex crime and accident cases starts with creating the 3D Working Model. By… http://precisionsim.com/blog/2015-blog-posts/mar-2015-blog-posts/caught-act-part-two/

Impossible Is Nothing – The 3D Working Model vs Complex Nighttime Reconstruction

A nighttime collision between two tractor-trailers leaves both drivers with debilitating injuries and closes the lanes of a major California highway for hours. Upon investigation, it becomes clear that one of the drivers was entering the highway from a si…
A nighttime collision between two tractor-trailers leaves both drivers with debilitating injuries and closes the lanes of a major California highway for hours. Upon investigation,… http://precisionsim.com/blog/2015-blog-posts/jan-2015-blog-posts/impossible-nothing-3d-working-model-vs-complex-nighttime-reconstruction/

The Old Way vs The Best Way – 6 Benefits of 3D Working Model & Animation over Traditional Video for Daytime/Nighttime Visibility Reconstruction

Traditionally, driver’s-eye nighttime visibility cases have been visualized for the jury via film and video. The benefits of this approach are mostly related to the use of the actual vehicles and scene elements, which allows the complex lighting and visib…
Traditionally, driver’s-eye nighttime visibility cases have been visualized for the jury via film and video. The benefits of this approach are mostly related to the use of the… http://precisionsim.com/blog/2015-blog-posts/jan-2015-blog-posts/he-old-way-vs-best-way-6-benefits-3d-working-model-animation-over-traditional-video-daytimenighttime-visibility-reconstruction/

The Statistics of Ballistics: Predicting the Shooter's Location

PSI has completed the fieldwork for our long awaited ballistic trajectory analysis and I have begun analyzing the statistical portion of the field test data. Calculating variances within and across the test conditions, looking for patterns and determining…
PSI has completed the fieldwork for our long awaited ballistic trajectory analysis and I have begun analyzing the statistical portion of the field test data. Calculating… http://precisionsim.com/blog/2014-blog-posts/dec-2014-blog-posts/statistics-ballistics-predicting-shooters-location/

CAC and CACLD Fall Seminar

Right on the heels of my return from Korea, I was off to Sonoma County where I attended the joint meetings of the California Association of Criminalists (CAC) and the California Association of Crime Lab Directors (CACLD). These two groups are focused on t…
Right on the heels of my return from Korea, I was off to Sonoma County where I attended the joint meetings of the California Association of Criminalists (CAC) and the California… http://precisionsim.com/blog/2014-blog-posts/nov-2014-blog-posts/cac-and-cacld-fall-seminar/

World Forensic Festival in Korea

The last few weeks have been a whirlwind of conferences and speaking engagements, First, was the amazing World Forensic Festival in Seoul, Korea. Jetlag was brutal, but I am very excited by what I experienced! As a forensic scientist or consultant, if you…
The last few weeks have been a whirlwind of conferences and speaking engagements. First, was the amazing World Forensic Festival in Seoul, Korea. Jet lag was brutal, but I am… http://precisionsim.com/blog/2014-blog-posts/oct-2014-blog-posts/world-forensic-festival-korea/