Guardian Forensic Sciences
P:  215-277-1780
F:  215-277-1785
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    • Basics of DNA
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    • Cracking the Code - Deciphering DNA
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  • Case-Philes
    • The Case of the Vasectomized Rapist
    • The Case of the Feline Felons
    • The Case of Dr. Richard Schmidt
    • The Case of the Southside Rapist
    • "Forever in our Hearts"
    • The Pool of Tears
    • Triple Homicide in the Bayou
    • There's No "P" in Coffee
    • Somer Thompson
    • The Case of the Hairy Bat
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​​Retention and Transfer of Spermatozoa in Clothing by Machine Washing:

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DNA Transfer During Laundering May Yield Complete Genetic Profiles:

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Could Secondary DNA Transfer Falsely Place Someone at the Scene of a Crime?:

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DNA Transfer:  Review and Implications for Casework:

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Evaluation of Multiple Transfer of DNA Using Mock Case Scenarios:

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Another Phantom from The Morgue — A Case of Instrument-Born Sample Contamination in the Course of Identifying an Unknown Deceased:

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The Transfer of Touch DNA from Hands to Glass, Fabric and Wood:

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​Secondary and Subsequent DNA Transfer in Criminal Investigation:

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​DNA Transfer Within Forensic Exhibit Packaging:  Potential for DNA Loss and Relocation:

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Trace Evidence Characteristics of DNA:  A Preliminary Investigation of the Persistence of DNA at Crime Scenes:

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