Officers are investigating after a man in his 30s said he had been assaulted in Bath Street at around 12.15pm on 12 November 2020.
The victim was cycling down an alleyway, which connects to Stuart Road, when he was approached by another person who pushed him from his bike. He was then threatened with a knife and had a quantity of money stolen.
The suspect has been described as a black and aged between 14 and 18. He is around 6 feet tall and clean-shaven with black, slicked-back hair. At the time, he was wearing a black blazer, white shirt and a black backpack.
Officers have carried out several enquiries, including a review of CCTV, and would now like to hear from anyone who may have witnessed the incident. They would also like to hear from anyone who was driving in the area at the time of the assault and has dashcam footage.
Anyone with information is asked to call the Kent Police appeal line on 01474 366149 quoting crime reference 46/202770/20.