Depending upon the nature of investigations, timely forensic examinations normally can expedite the apprehension of suspects. Conversely, delayed results can lead to suspects remaining free for extended periods of time, thereby allowing them to potentially commit other crimes.
Before we look at the specifics of crime scene photography, let’s consider the equipment you’ll...
The NFL has 32 teams, not groups. Teams. All teams are groups, but not all groups are teams....
In terms of DNA profiling, by far the most expensive portion of obtaining a profile is the lab costs. Obtaining a better sample on the front end by using a new collection method, a hundred dollars price increase is a relatively insignificant amount.
Whether you run your own company or manage a team of people it’s important sometimes to stop and take some inspiration from those who have been through it all before and come out top.
I understand that most departments don’t have I.D. Units who come out and process scenes for latent prints, however, there is a solution. The backbone of every police department is its patrol division.
Safely storing flammable and combustible liquids in laboratories or stockrooms is risky business. However, by paying attention to the hazard class of the material, the largest container size and the total quantities we can minimize that risk. In addition, here are some general guidelines for safe flammable and combustible storage.
As a manager you should help to make sure that you know each employee's career goals. These goals should be things the employee really wants, not just something that sounded good at that moment. You should also help the employee make sure his goals are high enough.
Despite some laboratories moving away from GSR testing and others imposing limits, law enforcement personnel should collect GSR samples when probative.
At first glance, it would seem that the most logical and obvious way to increase storage capacity would be to add more platters to a hard drive. However, this raises a number of inherent problems, such as having to increase the size beyond the current form factors (3.5”, 2.5”, etc.), escalating the cost per hard drive, having to have more read/write heads per hard drive, and so forth.
The National Fire Protection Association’s (NFPA) Code for Flammable and Combustible Liquids, NFPA 30, is an excellent resource and introduction to the hazards of these materials. Without getting too bogged down in technical details, there are a few concepts that need mentioning and understanding at the outset.
To increase hard drive storage capacity, manufacturers have been able to decrease the size of magnetic grains which comprise data bits. This allows for a greater number of bits of data to be recorded. However, the grains are so small that they can potentially interfere with each other. This diminishes their ability to maintain assigned magnetic orientations and data would become corrupted, leading to an unreliable and unusable hard drive.
When you arrive at the scene, establish secure, central areas for clean equipment, items to be disposed of, and items to be decontaminated. For the first area, I used to take a clean biohazard bag, open it up, and spread it on the ground.
A good autoclave safety program must include documentation. Principal investigators and supervisors are responsible for ensuring proper records are kept up to date. Autoclave users should be responsible for recording autoclave run information.
Typically, managers dread having to perform employee assessments and experience high anxiety anticipating them. For the employee, too, who is about to undergo a formal performance assessment, the procedure is a high-anxiety producer. So what typically happens is that two very nervous people get together, try to act calm, and just “get through it.” It doesn’t have to be that way.
As I've mentioned before, understanding what is possible—not just by you, but by others—is crucial. Prints are a good example. In the past, we couldn’t lift prints from certain surfaces. Now, experts can lift latents from documents, papers, and adhesive tape.
The mobile device industry is evolving very quickly. To stay current on the latest devices and the proper techniques for acquiring and analyzing data, smartphone and mobile device forensic analysis training courses are becoming more and more necessary.
This apparently innocent question may be the one you agonize over the most. Personally, we feel there is no substitute for face to face interviews and a physical walk through of each laboratory. The crucial thing here is that the auditor or surveyor must be trained and knowledgeable about the type of work being performed in the laboratory undergoing the safety audit.
Contamination of equipment at a crime scene is a serious problem and can occur in many ways. Any time your equipment comes into contact with blood, fluids, or other substances at a scene, you run the risk of contamination.
When someone says I don’t like my job, there’s little hope of retaining that employee, right? Not necessarily, there’s a fair chance that 1) I don’t like my job reflects feelings of discontent rather than a clear picture of dissatisfaction, and 2) a decision to leave would be premature.
A laser device allows you to measure in almost any unit and resolution. The use of this type of device makes taking scene measurements a one-person job.
As digital devices continue to proliferate, digital storage capacities are approximately doubling every two years. The sheer amount of digital media being submitted for forensic analysis is overwhelming.
The height of an individual can be determined by his/her footprint and shoeprint. The foot tends to be approximately 15 percent of the person’s average height. At times series of footprints are left at the scene of a crime forming a recognizable gait cycle. The information gathered during examination of footprints and also on closed circuit television (CCTV) may be of value for forensic application.
Do you ever feel overwhelmed as a manager? Being overburdened by the responsibility of having to figure out what others want and need of you is a familiar feeling shared among leaders. Fortunately, there is a “best practice” for obtaining just the kind of information needed to increase your leadership effectiveness — ask them what they want.
The era of “Big Data” is already upon us and the continued exponential growth of electronic devices and archival storage capacity will soon reach a crises point regarding digital forensic analysis and investigations.
Boot loaders are currently considered the most forensically sound physical extraction method. While they do involve loading a piece of code onto the device, this happens before the forensic tool accesses any evidentiary data. That’s because they replace the device’s normal boot loader, or the first set of operations that kick off the phone’s startup process and hand off to the main controlling program, like the operating system.
Just consider autoclaves as large specialized pressure cookers. Autoclaves use heat and pressure with water to create superheated steam. As such, they can pose significant hazards to un-trained or lackadaisical employees.
Cloud computing raises some unique law enforcement concerns regarding the location of potential digital evidence, its preservation, and its subsequent forensic analysis. Further forensic issues concern the potential effect the cloud services could have on the digital data itself and how the forensic examiner can explain all these indiscretions to the court.
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