That is the message from Lincolnshire Police - who suggest that adapting your home to the warm weather can offer criminals a window of opportunity.

PC Nic Hanson, who is the Crime Reduction Officer for Horncastle, Boston, and Spilsby/Wainfleet is concerned that thieves are being given an open invitation.

He is warning homeowners and the public to be extremely careful throughout the warm summer months.

He told The News: "Opening windows and doors may let in the fresh air during hot spells, but it takes just seconds for a burglar to walk or reach in to grab purses and other valuables from windowsills and worktops.

"However, following some simple guidelines can really reduce your risk of becoming a victim of burglary or theft".

PC Hanson has issued a number of tips on how to safeguard your home from sticky-fingered thieves.

These include:

If you are at the rear of the house or in the garden, always ensure the windows and doors at the front are locked.

Lock all downstairs windows at night.

Make sure your house is secure when you leave it, even if just for a few minutes.

Do not leave valuables in sight or reach of any open windows.

Mark up valuables with your postcode. UV markers can be used but, if the item is suitable, paint pens, or other overt permanent markers make the item less attractive to thieves as they are harder to re-sell.

PC Hanson is available to pass on further information about home security by calling 0300 111 0300.