Police want to speak to anyone who saw a man throwing cones into the road in front of Cineworld on the Waterfront.
It's claimed he then tried to pull another man out of a car.
The car left the area.
It happened between 9.15pm and 9.30pm on Thursday.
A 34 year old was arrested at the scene and officers say enquiries are ongoing.
Anyone with any information is asked to contact police on 612612 or anonymously via Crimestoppers on 0800 555 111.
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Teenage boy arrested on suspicion of sexual touching at Millbrook Park
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Haut Du Mont Trial: 'It could explode', jury hears 999 calls
Jurors have heard the 999 call made by Haut Du Mont resident Louisa De Almeida, reporting the smell of gas inside her flat, hours before the explosion that killed her and nine others in December 2022.
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The supervising engineer of gas works that led to a fatal explosion at Haut du Mont was distracted when he attended the flats to check valves were closed, Jersey's Royal Court has been told.
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Haut Du Mont Trial: Gas works were 'sloppy, unsafe, and cut corners', allege prosecutors
A jury has heard claims the gas work undertaken in the area around Haut Du Mont on the day before a fatal explosion four years ago was rushed, based on 'guesswork', and 'sloppy'.
