A man exposed himself in a shopping street on a Sunday morning, Sussex Police said.
The force said: “Police are appealing for witnesses following an exposure incident in Chichester.
“It is reported a man was exposed in East Street at around 9.50am on Sunday 18 August.
“The suspect is described as mid-fifties, slim and wearing navy blue shorts and a striped green shirt.
“He is believed to have been acting suspiciously.
“Witnesses or anyone with any information is asked to contact police online or call 101 quoting serial 672 of 19/08.”