Thames Valley Police has released an E-Fit image of a man officers would like to speak to in connection with an indecent exposure in Milton Keynes.
The exposure took place on October 16 in Linford Wood, Milton Keynes.
At around 4.30pm a woman was walking her dog in Linford Wood, when she noticed that a man cycling past her had turned and was slowly cycling slowly past her again.
The victim, a 45 year old woman, noticedthat he was touching himself inappropriately.
The offender is described as a white man, around 6ft with a slim build.
He had short brown hair with a slight wave in it - he was described as wearing grey jogging bottoms and a dark red hooded jumper.
PC Kelly Gladstone, said: “I would like to re-assure members of the local community that we are conducting a thorough investigation into this incident.
“In order to assist us with this we would like to identify the man in this image who we believe may have vital information.
“I would urge anyone with any information to contact police via the Thames Valley Police enquiry centre on 101.”