Guernsey Police had to intercept after a "public order incident" at the Lower Pollet on Friday night.
It involved two men and two women.
The incident happened at around 21:55, a time when many other people may have been in the vicinity.
Anyone with information about this incident should call PC Manning or PC Winberg on 222 222, or via Crimestoppers anonymously on 0800 555 111.
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