A warm weather warning has been issued after police on patrol found open windows, unlocked vehicles and valuables on show.
As the seasons change a team of 10 officers spent six hours out in Kettering on Wednesday checking residents had locked windows and doors.
Operation Guardian co-ordinator Sgt Craig Johnson said: “Changing of the seasons, especially when it goes from cold to hot, is a time to educate people about safety and reduce the risk of them being a victim of crime.
“Preventing crime is better than trying to catch the criminals after the event.
“It’s trying to get people thinking about the basics like locking the front door when you go into the garden.”
The officers found a house with large front windows open as the owners sunned themselves in the back garden.
The owners were oblivious as officers rang the bell and banged on the door and only responded when they shouted over the fence.
A toilet window large enough for an adult to climb through was open at the front of another house while a rear window with electrical goods on show was open at the back.
The officers also found a motorcycle with the locking chain under the seat instead of securing the wheel.
The team, who are part of Operation Guardian, also distributed warning leaflets designed by 10-year-old Molly Phillips, of Park Junior School, Kettering.
Alan Cooke, 78, of Chestnut Avenue, Kettering, said: “I think that’s a jolly good idea. It’s easy to be complacent when the weather’s nice.”