Neither the evolutionist or creationist can go back in time to that moment or recreate it in a lab. In this respect, the scientific method is impossible and I really think that the origins question is more of a philosophy on life.
Maybe not directly, but indirectly one can get enough information to substantiate or debunk a hypothesis. It is similar to modern day forensics. One does not have to see a crime committed to gain information from trace evidence and the method is the same as determining what a fossil is, when the creature lived and what it is related to.
There is no better love between 2 people than mutual respect for each other WT Young, 2002
Who gave anyone the authority to call me an authority on anything. WT Young, 1969
Since Evolution is only ~90% correct it should be thrown out and replaced by Creation which has even a lower % of correctness. W T Young, 2008