POLICE are anxious to trace two road users as witnesses in two separate cases of alleged careless driving that occurred over the last few days.
On Thursday evening at about 6.20pm a vehicle believed to be a white BMW was reported as overtaking a black Landrover towing a trailer near the shooting range on B9073.
Police said other drivers were forced to take evasive action to prevent a collision with the overtaking vehicle.
Sergeant Victoria Duthie said police were particularly keen to speak to the driver of black Landrover.
Meanwhile, on Saturday at around 1.45pm a silver Ford Focus was reported driving recklessly on the main A970 between Levenwick and Sumburgh.
This time police said they would like to speak in particular to a cyclist who was heading north at the time.
Anyone who can help police with their investigations is asked to contact them either directly at the Lerwick station or by calling 101.