The post quickly went viral, racking up more than 5,300 shares and 3,200 likes by Monday morning.
So far, nobody has taken the bait, Harahan Police Chief Tim Walker told the New Orleans Advocate.
Walker added that meth can't really be contaminated with Zika, a mosquito-borne illness that can cause birth defects. The officer behind the post, Keith Moody, was just trying to highlight the drug epidemic, Walker said.
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"There is an opioid and meth problem," Walker told the Advocate. "It's all over the country."
The department echoed the sentiment in a follow-up Facebook post Sunday.
"Folks, the drug epidemic is real ... praying 2019 brings solutions to a real national epidemic," it read. "We will continue to aggressively enforce drug laws and work with fellow agencies to combat the illegal enterprises that are literally killing more than 100 people a day with illicit drugs. Please reach out to family/clergy/social services if you are addicted to drugs and want help. HPD wishes you a happy and SAFE New Year!"
>> See the post here
Harahan police aren't the first to try to trick naive criminals with the offer of a phony Zika test. Since 2016, police departments in Ohio, Michigan and South Carolina have used similar ruses.