Police investigating a sexual assault near Swanwick have released a sketch of a man they would like to speak to.

The incident happened on June 19 last year – Father’s Day – in the fields between Pentrich Road, Asher Lane and Back Lane.

A woman in her 50s was walking her dogs at around midday when she was grabbed by a man who then sexually assaulted her.

According to Derbyshire Constabulary, the man was described as being in his early 30s, around 5ft 10ins tall and of slim build. He had pale skin and dark brown hair.

The force said the man was also wearing “distinctive thick, square, black sunglasses”.

Detective Bev Neville, who is leading the investigation, said: “Since the incident happened, we have been following several lines of enquiry but haven’t, as yet, been able to identify the person responsible.

“This incident has had a devastating impact on the victim, and we’re determined to find out who carried out the attack and bring them to justice.

“The description given to use by the victim was very detailed and the sketch is memorable and I am sure that if you had seen this man on the day then you would remember.”

Anyone who recognises the man in the sketch should contact Derbyshire Constabulary and quote reference number 22*350989.

You can contact officers via the Derbyshire Constabulary Facebook page; by sending a message to the @DerPolContact Twitter account; or by calling 101.

You can also use the force’s online contact form.