BENDIGO detectives say there has been a growing trend toward daylight robberies and opportunistic crimes.
Detective Tom Harper warned it was an "unfortunate reality" that people needed to be cautious of monitoring their possessions, even while in their own home.
The message came one day after a laptop was stolen from the backyard of a Golden Square home. The thief allegedly scaled the fence of the home and took the laptop before fleeing back over the fence.
Detective Harper said the number of thefts was a growing concern.
“These types of offences are becoming more prevalent,” he said.
“Thieves are becoming bolder.”
"That particular incident (of the laptop) is unusual. It’s particularly brazen that they’ve jumped the fence. Certainly more brazen than most. But it's an example of how, unfortunately we have to consider looking after possessions more."
Detective Harper said many thefts and robberies were linked to a growing level of drug use.
He said it was important people were vigilant of not leaving themselves vulnerable to crime.
"Most of these are opportunist thefts," he said.
"It's the same as vehicles. Items left in vehicles attract thieves."
Detective Harper said the most common items stolen were electronic devices such as iPads, mobile phones and laptops.