Police are looking to trace these people in connection with a number of incidents in Derbyshire.
Officers are currently searching for 16 people in connection with offences ranging from assault to shoplifting and fraud.
They include a man police want to speak to in connection with an incident where a woman was sexually assaulted whilst walking her dog in Alfreton Park on February 1.
More details, and pictures of those police are currently seeking, are available at www.derbyshire.police.uk. Images may be of both potential suspects or witnesses.
Members of the public are warned not to approach anyone they believe to be displayed in the images but should contact Crimestoppers on 0800 555 111 and give the identity of the person shown, quoting the reference number accompanying the picture.