Drug & Alcohol Testing

How long drugs show up in urine depends on the drug, the amount and the person. Here are typical ranges for common substances.

A standard hair drug test covers roughly the last 90 days. Here’s why, and what affects the window.

Each drug test sample type shows a different window of time. Here’s how urine, hair and nail tests compare for legal cases.

Urine, hair, nail, EtG or PEth? Here’s how attorneys match the drug or alcohol test to the allegations in a custody case.