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Wrong Joseph Galdi?

Joseph Galdi

Biological Sciences Section Supervisor

Suffolk County Crime Lab

Direct Phone: (631) ***-****       

Suffolk County Crime Lab

Background Information

Employment History

Supervisor, Biological Sciences Division
Suffolk Crime Lab

Chief of the Biological Sciences
Suffolk Crime Lab

Supervisor of the Biological Sciences Section

Web References (15 Total References)

Joseph Galdi, Biological ...

www.neafs.org [cached]

Joseph Galdi, Biological Sciences Section Supervisor Suffolk County Crime Lab North County Complex Building 487 725 Veterans Memorial Highway Hauppauge, NY 11787-0099 Phone: 631 853-5585 Fax: 631 853-5739 E-mail: This email address is being protected from spambots.

Newsday.com - Long Island News

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"It's improbable that any DNA would remain on a weapon left outside for 16 years," said Joseph Galdi, chief of the Suffolk Crime Lab's biological sciences section.

Newsday.com - New DNA Tests Helped

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We're constantly amazed by what we can get DNA off of , said Joseph Galdi , supervisor of the Suffolk Crime Lab's biological sciences division.

Scientists recently swabbed the inside of a glove left at the scene of a burglary and were able to get a full DNA profile , Galdi said.And in the case of Kristin Scarabelli , authorities say the new DNA testing method linked next-door neighbor Stephen Manolis to an object found on her front lawn , where police say she was killed.
DNA tests available when she was killed five years ago could not have revealed the same information , forensic scientists said.
Crime scene investigators have relied on DNA evidence - sometimes called genetic fingerprinting - for more than a decade.The idea behind it is that DNA , the unique biological code found in the cells of every person , can be used to match blood stains , semen or saliva found at a scene or on evidence to a suspect or a victim.
Until two years ago , forensic scientists used two kinds of DNA tests , each with its own trade-offs.Restriction fragment length polymorphism , or RFLP , testing offered accurate results , but it was time-consuming and required a relatively large stain - about the size of half a dime , Galdi said.
The other method , polymerase chain reaction , or PCR , could be performed quickly on a much smaller sample but was less accurate.
The new method , short tandem repeats , or STR , offers the best of both methods.It is accurate enough in many cases to make a virtual match between a DNA sample and a specific person , even while using a tiny piece of evidence.

Newsday.com - Long Island News

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Earlier Tuesday, Gerald Shargel, of Manhattan, finished his cross-examination of Joseph Galdi, supervisor of the biological sciences section of the Suffolk County Crime Laboratory in Hauppauge.

Galdi acknowledged that, initially, the pubic hair was found to be microscopically dissimilar to Ammon's hair and was then discovered to be "consistent" with Ammon's hair through DNA analysis.He said he still considered the hair to be a "match" with Ammon's own.
But during Shargel's questioning, Galdi conceded that the hair had only a few of the genetic markers needed for DNA analysis.Therefore, the odds of someone other than Ammon fitting the DNA profile of the hair was 1 in 500, or far less likely than a DNA match using all the markers, which is 1 in several quadrillion.
On Monday, Galdi acknowledged the same was true about a head hair found at the crime scene -- one of three heads hairs and one pubic hair analyzed.
Galdi said he had seen only a half-dozen cases, including this one, in which hair samples first found to be dissimilar under microscopic analysis are later proven to be consistent with each other through DNA analysis.
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The Independent Newspaper serving the Hamptons, North Fork, Shelter Island and East End of Long Island, Suffolk County, NY

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Joseph Galdi, Supervisor of the Biological Sciences section within the Suffolk County Crime Laboratory, also said that three of the four "question hairs" found at the crime scene were the victim's.

But on cross, Shargel succeeded in getting agreement from Galdi that the initial DNA analysis on one of the hairs matched to Ammon was less than conclusive because little genetic material was obtained.
Galdi was quick to add, however, that additional DNA examination ruled it a match.

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