Articles
Guides on DNA testing, drug testing and family law
Plain-English answers for attorneys and their clients. DNA & paternity · Drug & alcohol · Family law · En español
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What Happens at a Paternity Test Appointment
A step-by-step look at a legal paternity test appointment: check-in, ID, photos, the cheek swab and paperwork. Most visits take about 15 minutes.
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Rights of Unmarried Fathers: An Overview
Unmarried fathers often have to take legal steps before their rights are recognized. Here’s a general overview.
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Urine Drug Test Detection Windows
How long drugs show up in urine depends on the drug, the amount and the person. Here are typical ranges for common substances.
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How Long Does a Legal Paternity Test Take?
From ordering to results, here is a realistic timeline for a legal paternity test, plus the things that most often cause delays.
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How Paternity Affects Child Support
A child support order usually requires legal paternity. Here’s how paternity is established and how support follows.
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Chain of Custody in DNA Testing, Explained
Chain of custody is the paper trail that proves a DNA sample was never swapped or tampered with. Learn how it works and why courts depend on it.
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How Far Back Does a Hair Drug Test Go?
A standard hair drug test covers roughly the last 90 days. Here’s why, and what affects the window.
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¿Qué es una prueba de paternidad legal?
Una prueba de paternidad legal documenta quién dio cada muestra para que el tribunal pueda usar el resultado. Le explicamos cómo funciona.
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Urine vs. Hair vs. Nail Drug Testing
Each drug test sample type shows a different window of time. Here’s how urine, hair and nail tests compare for legal cases.
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Legal vs. At-Home Paternity Tests: Why Courts Reject Home Kits
Home DNA kits and legal paternity tests use similar lab science, but only a legal test documents identity and chain of custody. Here’s the difference.
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How Paternity Affects Child Custody
For unmarried parents, legal paternity often comes before custody rights. Here’s how the two are connected.
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Choosing the Right Drug Test for a Custody Case
Urine, hair, nail, EtG or PEth? Here’s how attorneys match the drug or alcohol test to the allegations in a custody case.