A women was taken to hospital after her drink was allegedly spiked at a St Albans bar.
A friend out with her also said she felt unwell after the two visited the Slug and Lettuce on Saturday, March 4.
PC Jill Brown said: “This is very unusual and I’d appeal to anyone who was in the Slug and Lettuce last weekend and may have seen anyone acting suspiciously, or has any information about the alleged drink spiking.”
The woman, who is in her late 20s, has been discharged from hospital.
Police are now visiting local bars and pubs to raise awareness of the dangers of excessive drinking and potential drink spiking.
PC Brown said: “I’d like to remind women to be extra cautious about accepting drinks from strangers or leaving their drinks unattended.
“If you start to feel unwell, contact a member of staff or security and stay safe.
“Symptoms associated with spiked drinks can include confusion, drowsiness, paranoia, nausea and memory loss.”
Anyone with any information should ring 101.
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