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Clandestine Drug Labs Present Significant Hazards

September 29, 2014 8:00 pm | Comments

Due to the chemicals used to make the drugs and the wastes generated during the “cooking,” clandestine laboratories present significant safety and health risks to law enforcement, forensic scientists, and the public. When a clandestine drug lab is discovered there is a basic three stage approach to move from seizure to a fully restored site.

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Should You Say "I Don’t Know" on the Witness Stand?

September 26, 2014 8:17 am | by Elaine M. Pagliaro | Comments

It goes without saying that the expert will understand the scientific basis of the testing that was done. However, even the most educated and experienced persons have gaps in their knowledge and experience. In most cases, what you don’t know will have no effect on the outcome of a trial.

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Essential Equipment

September 25, 2014 5:02 pm | Comments

You can make your job more manageable by paying attention to the fundamentals. One of the most important things you can do is determine the equipment that is essential to your job. As you gain experience and expertise, the list of equipment will certainly grow and include more specialized items.

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Most of us know you should attempt to develop latent prints as soon as possible. When latent prints are deposited on a surface, nearly 99% of the print is composed of water. The water begins to evaporate and the print dries out. For this reason, it is ess

Processing For Latent Prints: Looking To Patrol For Help

September 24, 2014 8:55 am | by Detective William Oakley | Comments

Most of us know you should attempt to develop latent prints as soon as possible. When latent prints are deposited on a surface, nearly 99% of the print is composed of water. The water begins to evaporate and the print dries out. For this reason, it is essential to have first responding officers trained in the development of latent prints when no one else is available.

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Hazards of UV do not distinguish between work and home, and in addition to sunlight, UV light sources are found in the workplace including labs, mechanical rooms, and shops. Sources include some biosafety cabinets, certain types of hand-held light sources

Indoor UV Exposure

September 23, 2014 11:54 am | Comments

Hazards of UV do not distinguish between work and home, and in addition to sunlight, UV light sources are found in the workplace including labs, mechanical rooms, and shops. Sources include some biosafety cabinets, certain types of hand-held light sources, transilluminators, crosslinkers, and some laboratory instruments such as spectrophotometers.

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Legal Aspects and Tool Reliability

September 23, 2014 8:13 am | by Gary C. Kessler and Matt Fasulo | Comments

Because of the newness of network forensic activity, network examiners are often left to use existing and emerging tools that have not yet faced the challenge of being proven valid in court. In some respects, the presentation phase of a digital investigation is the most critical; regardless of what has been found, it is worthless if the information cannot be convincingly conveyed to a judge and jury.

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Thrifty attackers, are you tired of investing your dollars in a botnet that's constantly being disrupted by new anti-virus signatures and bot downtime? A "cloudbot" might be just what you seek.

iCloud Hacked!?!

September 23, 2014 6:15 am | by Rebecca Waters | Comments

About a week before this issue went to press, we were treated to a veritable media frenzy surrounding the alleged hacking of iCloud and the news of hundreds of celebrity nude photos leaked. Every news outlet, it seemed, was ready to put forth its own “digital forensics expert”. Now as we prepare to send this page to the printer we are beginning to see the results of the real investigations into the incident.

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Using Metadata in Litigation

September 23, 2014 5:37 am | by Andy Spore | Comments

When it comes to metadata as part of a litigation strategy, we mostly see it used as supporting information about the data. It is unusual, but not unheard of, to see metadata used directly as evidence. That is likely to change as more people understand the role metadata can have in developing legal strategy. With proper forensic analysis, metadata can help highlight patterns, establish timelines, and point to gaps in the data.

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Clearly, finding and collecting as much evidence as possible is key. But in doing so, it’s all too easy to contaminate the results. How can we avoid contamination?

Crime Scene Glove Trick

September 19, 2014 10:19 am | Comments

Clearly, finding and collecting as much evidence as possible is key. But in doing so, it’s all too easy to contaminate the results. How can we avoid contamination?                         

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Retrieving Obscured Files

September 19, 2014 10:00 am | Comments

One should not expect to find all user information sitting in the default folder or default location for a given type of file (e.g. Application Data or similar folder). Searching the entire hard disk is required in order to locate all unencrypted log and history files. 

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Determination of Blood Alcohol Content has been a standard analytical method in criminal labs for many years. Recently, however, additional compound identification provided by matching the ethanol mass spectrum to a library spectrum, in addition to RT, ha

Analysis of Blood Alcohol by Headspace with Simultaneous GC-FID and MS Detection

September 17, 2014 8:34 am | by Zhuangzhi “Max” Wang, Ph.D.; Richard R. Whitney, Ph.D.; Nicole M. Lock; Laura Chambers | Comments

Determination of Blood Alcohol Content has been a standard analytical method in criminal labs for many years. Recently, however, additional compound identification provided by matching the ethanol mass spectrum to a library spectrum, in addition to RT, has proven to offer an additional level of confirmation. This article describes BAC analysis using a GC-FID in parallel with a mass spectrometer for positive compound identification.

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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 hap

Performance Assessment Revisited

September 16, 2014 8:56 am | Comments

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.”

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When a death investigator first arrives at the crime scene, he or she must confirm the death and conduct a scene walkthrough.

Arriving at the Death Scene

September 12, 2014 9:14 am | by NIJ | Comments

When a death investigator first arrives at the crime scene, he or she must confirm the death and conduct a scene walkthrough. He or she should follow certain steps.                         

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First Responder Electronic Crime Scene Investigation

September 12, 2014 8:50 am | by NIJ | Comments

First responders must use caution when they seize electronic devices. Improperly accessing data stored on electronic devices may violate Federal laws, including the Electronic Communications Privacy Act of 1986 and the Privacy Protection Act of 1980. First responders may need to obtain additional legal authority before they proceed. 

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The sooner every municipality and jurisdiction takes ownership of its own backlog issue and dedicates the appropriate amount of resources to get kits tested, the sooner they can stop worrying about whether some very smart lawyers are going to find a way h

Don't Let This Be You

September 10, 2014 8:40 am | by Chris Asplen | Comments

The sooner every municipality and jurisdiction takes ownership of its own backlog issue and dedicates the appropriate amount of resources to get kits tested, the sooner they can stop worrying about whether some very smart lawyers are going to find a way hold them responsible. 

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