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Friday, May 6, 2016

DNA evidence implicates burglar

Thursday, April 30, 2009

For most "CSI" and "SVU" fans, DNA evidence is fascinating, yet many regard this type of evidence as something that helps solve crimes only in large metropolitan areas who have large investigative teams. Recently, DNA evidence generated a warrant for a local burglary.

During a string of burglaries in the Highland area, blood evidence was recovered by Chief Bea Sharp and Officer Kyle Crawford. The blood was sent to the Arkansas State Crime Lab and returned to be that of local man with a prior arrest whose name was in the database.

DNA evidence is far more reliable in identifying a person than that of a fingerprint. Every person has unique DNA and according to an article published by American Society of Clinical Investigation, most positive DNA matches are followed shortly by a "guilty" verdict or plea.

A DNA fingerprint is created by first removing a DNA sample from the human body such as hair, blood or saliva. The sample is then segmented using enzymes and the segments are arranged by size using a process called electrophoresis. The segments are marked with probes and exposed on X-ray film, where they form the black bars often seen on crime programs. This is the DNA fingerprint.

In this particular crime, the burglar cut himself while entering the building and left ample blood evidence to be sampled. The crime lab returned the profile to the known criminal. The burglar was later involved in a motor vehicle accident in another state which warranted the suspect to present his identification to law enforcement authorities. The name was later red flagged due to the DNA evidence implicating the person in the burglary.

Unfortunately by the time the report was returned from the crime lab with the suspects name, he was not in police custody. The DNA evidence then generated a probable cause warrant.

Currently the burglar is still at large, but due to DNA evidence he will have to look over his shoulder until he is finally arrested and brought to stand trial for the burglary.

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Where did you get your info on DNA being more reliable that fingerprints. Identical twins have the same DNA but not the same fingerprints. I have been in forensics for over 30 years so please check you facts before you put out bad information.Why do you think they call it DNA fingerprinting because of the reliability of fingerprint evidence through out history.

-- Posted by troutman on Thu, Apr 30, 2009, at 7:53 PM

If they have his DNA from the crime scene, why not go ahead and publish his name?

-- Posted by Hem on Fri, May 1, 2009, at 6:59 AM

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