OP doesn't specify the case cited, so we have to take their word for details, but from the description it appears that everything was done as normal and as spec

OP doesn't specify the case cited, so we have to take their word for details, but from the description it appears that everything was done as normal and as specified in the Constitution. OP doesn't say if prosecutors established probable cause by other means, but doing so would let them apply to a judge for a search warrant with particulars of what they were looking for. Most search warrants involve going through a lot of irrelevant stuff to find the relevant stuff. Defendants can move to ensure the irrelevant stuff is excluded, and a judge not the prosecutor decides. It sounds like this is exactly what is happening in this case. Of course defendants have been trying for a long time to force prosecutors to establish guilt beyond reasonable doubt BEFORE getting access to evidence, but this goes counter to the Constitution and common sense.