Is the crime scene well done in the early stage or well managed in the later stage?

We'll deal with it later. On-site service of early cases mainly refers to the property maintenance of the developer's sales office. Common services include water bar service, cleaning service, security service, and sometimes answering property problems of buyers. Post-safety management refers to post-safety management. Generally, there will be no problem in the later stage of security management, so it is safe to manage in the later stage.