More employees are cheating on workplace drug tests. Here's how they do it.

A record number of U.S. workers are cheating on employer drug tests by tampering with urine samples or using other means to evade detection, new research shows. 

The percentage of employees who tried to fake the results of workplace drug screenings jumped more than six-fold in 2023 from the previous year, according to Quest Diagnostics, a national drug testing company. 

The surge in workers trying to hide their drug use comes as more states across the U.S. legalize recreational marijuana use. The shifting legal environment and changing societal norms around cannabis use is forcing employers to review their drug-testing policies. The chief aim of employer-mandated drug tests is to ensure a safe workplace, while recreational drug use can also affect worker productivity.