Our chain-of-custody procedures have withstood all legal challenges in our more than 65 years of performing drug testing. Whenever a sample is handled, a log entry is recorded to document this activity. Blood and urine samples are opened, an aliquot is removed for analysis, the containers resealed with security tape and initialed and dated by the person who removed the test portions to maintain chain-of-custody. Any subsequent removal of test portions are also completed with this tape-resealing procedure and documentation.
ALS’s drug testing laboratory is separated from our main facility via locked, key card access doors. Only authorized, trained personnel are allowed access to the lab. Our Drug Testing labs are further segregated and under a secondary key card access, allowing only Drug Testing lab personnel access to the lab, sample storage, and sample log-in areas of our Drug Testing lab areas. All Truesdail employees wear identification badges with their photo that grant access into these controlled areas. All visitors to Truesdail are required to sign in/out, wear a designated visitor badge, and have an escort when in the facility at all times. ALS’s facility is located within a mix-use campus with 24/7 security patrols and camera monitors for additional after hours security.
In addition to physical security, ALS’s instrument computers are fragmented from our main network system onto a lab only, non-externally connected network. Data from these systems can only be accessed via the physical computers within the Drug Testing Lab area. Data is backed up weekly and kept on separate, physical, fire resistant hard drives.