Before 2008, thefts occurred frequently in a residential area of a certain city  In 2008, at the request of the residents of the community, the property management department installed a multi-functional anti-theft system with advanced technology for the community, resulting in a significant drop in the incidence of theft incidents in the community
Since 2008, there has been a significant increase in thefts in other neighborhoods in the city.
 This shows that the multi-functional anti-theft system to prevent the theft of time played an important role