Officers are appealing for more information following a burglary of several items in a houseboat.
The burglary is believed to have taken place between the dates of Saturday, August 17, and Tuesday, August 20.
A search was carried out by Hertfordshire Police conducted a search in and around the premises shortly after the incident was reported.
Missing items include a distinctive bike and trailer which were secured outside of the boat, as well as other possessions missing from inside the boat.
There was significant damage caused by forced entry.
Detective Constable Claire Sprent, from the Local Crime Unit, said: “If you were in the area and saw any suspicious activity, or believe that you witnessed the incident taking place, please get in touch.”
You can report information online, speak to an operator in our Force Communications Room via our online web chat or call the non-emergency number 101, quoting crime reference 41/75640/19.
Alternatively, you can stay 100 per cent anonymous by contacting the independent charity Crimestoppers on 0800 555 111 or via their untraceable online form.