At about 4.45pm on Saturday (June 30) a man exposed himself to two women aged 25 and 22 outside the Post Office in Brunswick Road, Shoreham by Sea.
He had spoken briefly with the women before pulling down the front of his shorts and exposing himself to them.
The offender is described as white, aged about 40, about 5 foot 10 inches tall, and of skinny build, with receding shoulder length mousey brown hair, and a days worth of stubble.
He was wearing narrow glasses, a grey short sleeved t-shirt, grey shorts, and was carrying a silver stick described as being about a metre long.
PC Noel Simmonds said; “Anyone saw what happened or who thinks they know who this man may be is asked to contact us at Shoreham Police Station via 101 quoting serial 1312 of 30/6.”