03 April 2020
FINDAR – GPR to detect buried forensic evidenceKnow moreFINDAR – GPR to detect buried forensic evidence Case 1: Year: June 2012 Place: Oklahoma, USA Samantha Weaver, a mother of two children, goes missing. After three years of intense investigation, police zero-in on a particular property outside Shawnee, Oklahoma. They need to examine closely the backyard of this property. Oklahoma State Bureau of Investigation (OSBI) decides to use FINDAR, a Ground Penetrating Radar (GPR) system, to quickly survey the backyard and identify areas of interest. Based on the GPR results, they discover a decomposed body under plywood and three-feet of soil. Case 2: Year: Early 1968 Place: Philadelphia, Pennsylvania, US Two teenagers go missing following a walk to a corner store. 46 years later, a relative comes across a report about two unidentified bodies of teenage girls, suspected to be related and murdered at the same time in 1968, buried in Cumru Township in Philadelphia. The relative offers police DNA samples to investigate the identity of the bodies. Police had old maps roughly indicating the location of the unmarked graves but they are hesitant to use heavy machinery as that will result infurther desecration of the bodies. Police decided to use FINDAR GPR to quickly and accurately locate the graves. In October 2013, the bodies are exhumed. DNA tests confirm that the remains are of the missing teens. And with this, a four-decade long case is solved. Things common in both these cases: Crime (Murder) Investigating Agencies Undiscovered dead body FINDAR Results – Body discovered, case solved FINDAR Is a Ground Penetrating Radar (GPR) system which is aiding law enforcement agencies worldwide in quickly detecting buried forensic evidence. Its ease of use and ability to locate evidence in real-time makes it a popular choice among police forces in several parts of the USA, Canada and Europe. How does it work? All that a user is supposed to do is identify the area which needs to be examined. FINDAR is then navigated in this specified area to quickly image the subsurface through its GPR technology.The radar comes with an intuitive user interface which guides investigators through a systematic grid search. Its ability to generate 3D images on-site within seconds, and detect the position and depth of the potential evidence makes it a very useful tool for investigating agencies.It is, however, important to note that GPR does not show the outline of a body (potential evidence). Instead, it depicts anomalies in the subsurface or areas of disturbed soil.Based on thereal-time images, investigators are able to decide whether to opt for excavation or not. FINDAR Features: The product comes with the following features: GPR Sensor – Its high resolution, ultra-wideband, patented GPR technology provides exceptional data quality and can operate smoothly in extreme temperatures from-400C to +500C In-field Survey Results – View results in real-time while on-site, and pinpoint potential evidence quickly Wi-Fi Reports – Screenshot reports can be emailed directly from the investigation site USB Data Transfer – Data can be easily copied to a USB for reporting and archiving Rugged Touchscreen Display Unit – Since the screen is weather-proof, data can easily be viewed even during bad weather Internal GPS – The screenshots can be geotagged for future reference. Optional External GPS – This can be added if the requirement involves ‘high accuracy positioning and mapping’ Rechargeable Battery – Battery lasts between 4-6 hours without charging Odometer – Allows automatic data collection at regular distance intervals Ultra-light Cart – This makes the product easy to navigate survey sites, transport and deploy Advantages of FINDAR: It is convenient and easy-to-use with minimal training It provides results in real-time It can locate buried evidence on different types of terrains. Generate 3D depth slice images on-site within seconds Identify the position and depth of potential evidence Compact and portable system which fits into a single case. Easily transfer data or images to a PC Integrate images into reports Archive data and screenshots for future reference The FINDAR Advantage: While other commonly-used subsurface search technologies can detect only metal objects, FINDAR is capable of detecting both metallic and non-metallic objects. Uses: It can be used to locate: Clandestine graves Money or drugs buried in plastic or metal containers Buried weapons and ammunition stashes Who all can use it in INDIA? FINDAR has been specifically designed to meet the needs of law enforcement agencies.The challenges before these agencies in India are numerous, ranging from solving the murder cases to stopping illegal smuggling of drugs or weapons at border areas, or safeguarding themselves from IEDs in counter-insurgency operations/ areas. Some of the agencies involved in the above activities are: Police –It can be very helpful in criminal investigations. Central Armed Police Forces – Border Security Force (BSF), Indo-Tibetan Border Police (ITBP), Sashastra Seema Bal (SSB) – These are some prominent border guarding forces of India. Central Reserve Police Force (CRPF) – Actively involved with counter-insurgency operations in the country. Central Industrial Security Force (CISF) – Guarding sensitive infrastructure of the country like Parliament house, Delhi Metro, airports etc National Security Guard (NSG) – Elite counter-terrorism force of the country Indian Army – Aiding in counter-insurgency operations
03 April 2020
Underground 3D Scanning in BhutanSurveying cavities in underground excavation projects can be difficult and dangerous. The collapse of a roof inside the main access tunnel at a hydroelectric dam construction site in Bhutan resulted in a loss of life and a significant delay in progress. Project participants could not move forward with the tunnel work until they could ascertain the size and condition of the cavity that remained above the caved-in debris blocking the chamber. This article describes how an Indian technology application company deployed a laser scanner specially designed for cavity measurement to accurately determine the volume and dimension of the inaccessible space. In 2008, the governments of Bhutan and India committed to working jointly on the development of a multi-billion-dollar hydroelectric project in Bhutan’s Punatsangchhu region, along the river of the same name. With an original completion date of 2020, the entire endeavour would generate 10,000MW of power and supply electricity to millions of homes in Bhutan and India. The two governments set up the PHPA, an autonomous body involving organisations from both countries, to work on the massive undertaking. The centerpiece of the second phase of the project (called Punatsangchhu-II or ‘PHPA-II’) would be a dam of 86 metres high and 213.5 metres wide at the top. A series of tunnels, desilting chambers, surge and pressure shafts and an underground power station would be constructed, extending several kilometres from the dam site The two governments set up the PHPA, an autonomous body involving organisations from both countries, to work on the massive undertaking. The centrepiece of the second phase of the project (called Punatsangchhu-II or ‘PHPA-II’) would be a dam of 86 metres high and 213.5 metres wide at the top. A series of tunnels, desilting chambers, surge and pressure shafts and an underground power station would be constructed, extending several kilometres from the dam site. Click to know more...