"While a person has every right to expect to be safe in their home, unfortunately burglars don't subscribe to the same levels of decency and prey on the rest of the community.
"Had the victims invested $5 dollars on a spare key and locked the door - they could have prevented themselves from being victims in the first place."
And this wasn't the only incident of Christmas tree theft over the weekend.
Thieves forced their way into a home at Waihi Beach on Saturday where they stole two Christmas presents.
"In this case the bach was locked. The thieves forced entry via a window and made off with a television and two Christmas presents including a child's remote controlled helicopter," Grace said.
While the theft of children's presents is viewed by police as a particularly callous crime, police are warning the public not to leave gifts in plain view, she said.