CCTV images have been released after five pairs of sunglasses were stolen from an optician in Borehamwood.
The sunglasses, worth £722, were stolen from Insight Optician, in Shenley Road, on Friday, April 25 at 9.45am.
Four were Ray-Ban sunglasses, and one were Levi's frames.
Hertfordshire Constabulary would like to speak to the man pictured as he may have witnessed the investigation.
Anyone with information is asked to call 101.