A warrant for all the data you have about a person activity in 2019 is perfectly covered by giving only December data if that is all you have. A warrant obvious

A warrant for all the data you have about a person activity in 2019 is perfectly covered by giving only December data if that is all you have. A warrant obviously needs to be a bit larger in scope than needed, at the very least by requiring data that is relevant to the data you are interested in.