I'm not sure what the complete strategy on this is, as I'm no legal beagle. However, IF any of these items are not brought up later in testimony, by either expert analysis experts or the def, it will eliminate the possibility of these items being used as the pros holding back exculpatory evidence.
Meaning, to me, IF the accused it convicted, the def will look for ANYTHING held back by the pros that could prove this guy innocent, had the jury been able to see it. As this is being presented during the pros case, if no one brings any of these items up later, they were, well, basically useless information.
JMHO
fran