Referred to by respected and experienced law enforcement and security civil and criminal attorneys as “The expert’s expert.”
In a case where physical evidence such as DNA or fingerprints is not found, forensic voice comparison or forensic audio analysis is conducted by our experts. By interpreting noises, verifying the recording’s authenticity, and transcribing dialogue from voice recording, we are able to profile the speaker.
What is Audio-Video Analysis?
Audio and video recordings are more accessible than ever, from convenience stores, fast food restaurants, malls, banks, traffic intersections, parks, CCTV systems, and cell phone cameras. Audio can also be obtained from 911 calls, telephone answering machines, voicemail recordings, video cameras, cell phones, and computer files.
The initial phase of analysis necessitates observation of the recorded footage. Subsequently, our team will seek out the area of focus to be closely examined with specialized tools and software. To ensure the integrity of the evidence is preserved, a duplicate of the evidence is made for processing. This way, the original is always accessible in its unaltered form and can be used for comparison with the processed version.
The inspection procedure is carried out with precision to guarantee that the audio or video is an exact replica of the scene. Investigators never alter the registered information—they only improve what is already present.
Photogrammetry is the science and technology of obtaining reliable information about physical objects and the environment through the process of recording, measuring and interpreting photographic images and patterns of electromagnetic radiant imagery and other phenomena.
What is 3D photogrammetry?
3D Photogrammetry is the process of taking many photographs of an object from a variety of angels and stitching them together to create a 3D model. A standard digital camera can be used with specific software that detects overlapping patterns to build up a 3D reconstruction of the photographed object.
Medico-Legal Forensic Death Analysis
Our Forensic Pathologist and Toxicologists provide in-depth medical examinations and diagnosis into cause and manner of death. This is critical in the investigation of officer-involved shootings (OIS) and In-Custody Deaths (ICD). In addition, our pathologist who is a specialist in OIS works closely with our ballistic scientist in establishing the body mechanics and accurate positioning of the decedent at the moments they were shot by police or civilians. Our toxicologist is able to opine upon drug-induced behavior, supporting cause and manner of death. This is critical in the investigation of ICD’s.
An increasingly popular method for determining the speed of the cars involved in traffic accidents is speed estimation using video analysis. Typically, the estimate is based on either on-site measurements taken as a reference or measurements computed using photogrammetric methods.
What is Speed Analysis?
With the help of photogrammetry techniques, videos are analyzed to calculate the speed of a collision-involved vehicle.
As experts in the field of forensic investigations, we leave no stone unturned and treat each variable as a witness or piece of evidence. By taking into consideration the movement of the vehicle relative to the camera, the distance of the vehicle from the camera, and other objects that are in view, our experts are able to decipher the exact speed of the moving vehicle and opine on what the best judgment of the given situation would be, allowing our clients to move forward with the right information and present a solid case to the jury.
Forensic ballistics involves the examination of evidence from firearms used in a crime. By examining the microscopic marks on bullets and cartridge cases, which are like ballistic fingerprints, we can compare the marks on the bullets or cartridge cases from the crime scene to test-fired bullets or cartridge cases from a suspect’s gun. By analyzing how similar the two sets of marks are, we can assess if the bullets or cartridge cases are likely to be from the same gun or different guns.
For over a hundred years, forensic ballistics experts have been able to compare bullets and cartridge cases by looking at them through a split-screen microscope and offering an opinion on whether the bullets match.
Until now, it wasn’t possible for them to objectively assign a numerical measure of certainty to their opinion. The scientists at Martinelli & Associates are now continuously working in the labs to develop methods to do this.
In both the public and private sectors of digital forensic analysis, timelines have become a cornerstone. They aid in illuminating what transpired on a specific device or group of devices during a cybersecurity incident, criminal activity, collision, or other occurrences.
What is Time Analysis?
Finding the date and time of the evidence system is a common component of all forensic investigations. As the foundation of a timeline study, dates and times are one of the most important components of forensic analysis. Extraction of information and activity is also crucial, but the activity must be linked to precise dates and times.
The visualization of the data during timeline analysis provides an opportunity to discover specific patterns or links that might usually get overlooked during an investigation. With specific tools such as heat maps, charts, graphics, depictions of data clustering, etc. our specialists assist the analyst in order to find uncover the truth and also help illustrate those concepts to a judge or jury during courtroom testimony.