I think you're correct. The assumptions that he's only there to portray this as an accident aren't as likely as what you've suggested, IMO.
Which would make sense as to why he was at this specific motion hearing and in part, why JB went down the path that he did in questioning CSI Bloise. I'm sure you guys can add to this list, but following your train of thought, defense did obtain some specific jumping off points for Macaluso to begin researching and targetting from OCSO manuals and required accreditations for CSI and computer technical experts:
1. manual/policy/procedure regarding entry of hand-written notes into electronic format
2. daily notes transfered/entered into summary report
3. from LKB: refered to a set of standards regarding the notes from the computer analyst - did the analyst follow procedure and are they accredited in a way that is required to follow those standards.
Interested in any others you think might be under the microscope - strictly as a direct results of this motion hearing.
ITA- I think he's there to cast doubt on the methods and procedures of CSI & LE, muddy the waters as much as possible. I think he will review, in court before the jury, every freaking forensic testing procedure with every state expert witness, hoping he can get them to slip up and acknowledge any minute error.
However, I also think this will be a waste of time and effort on the defense's part. Unless he can find some GLARING mistake that will stick with the jurors, they most likely will find this boring beyond endurance, ignore it, and concentrate on the meatier aspects of the case (just human nature- let's face it, the jury will not consist of WSers). Jurors will be only human, and as such, will mostly only connect with information that makes sense to them. There is a BIG difference between showing product liability due to a failure to follow procedures (ie- product was not tested correctly, and therefore dangerous item was put on the market, etc.) and proving evidence in a child's death should be ignored because a techie entered info into his computer system a day late or missed a tiny hair on a tv dinner plate in a garbage bag, found it later, and then tested it, or a lab guy who's done a type of test a thousand times can't articulate the steps he follows quoting word for word from the procedure manual. Jurors will find this tedious at best and ignore it completely, at worst, imo, especially if JB does any of the questioning, as shown by his ridiculous performance in the hearing with the CSI.
Just as the media feeds the most shocking details to the public (Hi, Nancy Grace!) and that's what they remember, the jury will hopefully hone in on the important and more pertinent facts that SA presents- not reported missing by mother AT ALL, reported after 31 days by CA with KC asking for 1 more day, smell of death in car, decomp hair, lies, lies, lies, etc. JMHO