Officials say traces of the drug are more likely to show up in $5s, $10s, $20s and $50s.
Researchers say the currency can become contaminated during drug deals, snorting the cocaine, or in currency counting machines at the bank.
100 percent of bills tested in Los Angeles, Detroit and Miami had cocaine residue.
Report Typo |
Send Tip |
Get Alerts | Most Popular
Follow @abc7 on Twitter | Become a fan on Facebook
