Derbyshire police have shared a CCTV video of a suspect trying car doors.
The incident happened on Cleveland Avenue, Long Eaton, at around 4.15am on February 27.
Although not shown on the clip, one car was entered and searched, although nothing was stolen.
PCSO Samantha Abram, from the Long Eaton Safer Neighbourhood Team, said: “Although the image of the person is not that clear it does show him trying the car door.
“We often give advice to owners that they should secure vehicles and empty them of any valuables when left unattended and this clip shows why.
“Thieves will target the weakest target and this clip shows the suspect trying the car door and looking inside to try and find anything valuable to steal. If your vehicle is secure and emptied of any valuables you are less likely to become a victim of crime.
If you think you know who the person in the clip is, make contact with PCSO Abram using any of the following non-emergency contact methods and quoting reference number 19000111256:
Facebook – send a private message to /DerbyshireConstabulary
Twitter – direct message the force’s contact centre on @DerPolContact
Website – complete the online contact form www.derbyshire.police.uk/Contact-Us.
Phone – call 101.
You can also anonymously contact the independent charity Crimestoppers on 0800 555111 or by visiting www.crimestoppers-uk.org