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.
Photoshop's Save As command can be used to create files in virtually any file format the program supports. Illustrator, in contrast, uses Save As to create only PostScript file formats and SVG. Illustrator's Export command generates other file formats supported by the program.