The force said it was challenging to investigate because drugs pass through the system quickly and there was often limited evidence to identify offenders.

It said early reporting and police forensic testing was “key” to successful prosecutions.

Recent reporting data for Hampshire Constabulary showed between September 2024 and August 2025, the force received 169 reports of spiking.

One hundred and twenty were suspected drink spiking and 20 were alleged needle spiking.

Supt Phil Lamb said: “Spiking is an abhorrent crime and can have significant, traumatic impact on victims and feelings of safety.

“Women, and men, should be able to enjoy a night out without fear of being spiked and all pubs, clubs and other venues we work with strive to ensure they are a safe space for all.

“The early reporting of spiking and testing is key as drugs can pass through the system quickly.”

Police are visiting colleges and universities to awareness of the issues among students at the beginning of the academic term.