Around 11AM on Friday 9 June a silver Mazda was reportedly driving between the Forest and St Martin with a trampoline attached to the roof.
The Roads Policing Unit would like to hear from anyone who saw this or had their “journey affected by it”.
The car was driven between Rue du Mont Marche and Rue Jehannet.
If you have any information you can contact the police on 222222 or Crimestoppers on 0800 555 111.