More than 12,000 local police departments were operating in the United States during 2013. A local police department is a general purpose law enforcement agency, other than a sheriffs office, that is operated by a unit of local government, such as a town, city, township, or county.
SaveAs :- Is used to save an already saved document or anything (which you want to save) with a new name. In simple words with Save you save something with SaveAs you create a copy of already saved thing with a new name obviously. I hope you understood the main basic difference. TC.
save (third-person singular simple present saves, present participle saving, simple past and past participle saved) ( 1 transitive) To prevent harm or difficulty. To help (somebody) to survive, or rescue (somebody or something) from harm. 2  To put aside, to avoid. (transitive) To store for future use.