Officers have appealed for information following a robbery in Potters Bar.
This incident occurred on Saturday, September 22ndbetween 8.50pm and 9.00pm.
A woman in her 40s was walking alone through the alleyway between Tesco on Mutton Lane and Otways Close, when she was approached by a man and told to hand over her valuables.
The offender than run off and caught up with another man.
The main offender is described as a white man, 6ft tall, skinny build and wearing a black hooded top and a black baseball cap.
Anyone with information is asked to call Herts Police.