Police are appealing for help to trace a pair of motorcycle and trial bike riders in Belton.
They were called to reports of antisocial behaviour and bikes being ridden on pavements in Sandy Lane.
An officer attending was clipped by one of the riders as she got out of the car and suffered minor injuries.
The incident happened shortly before 3pm on Monday December 31.
A spokesman said the footage may have come to light after the incident and then had to be circulated among officers before being released.
Anyone who recognises the motorbikes or has any information concerning the incident should contact PC Tyler Kennedy at Great Yarmouth Police Station on 101.
Alternatively they can contact Crimestoppers on 0800 555 111.
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