charge sheet vs police blotter

charge sheet and police blotter both are nouns.

Word	Noun	Adjective	Verb	Adverb
charge sheet	Yes	No	No	No
police blotter	Yes	No	No	No

As nouns, charge sheet and police blotter are synonyms defined as:

charge sheet and police blotter: the daily written record of events (as arrests) in a police station

Other synonyms of charge sheet include blotter, day book, rap sheet.

charge sheet (noun)	police blotter (noun)
the daily written record of events (as arrests) in a police station	the daily written record of events (as arrests) in a police station