So if DNA being sent to some external bio lab can be certified, why couldn't a device being sent to a external tech lab?
There is a differerce between a :"Chain of Custody" and the expertise and protocols used by an external agency.
Chain of Custody means that th evidence is accounted for every moment, and from one hand to the next. Essentially, there is a perfect record of who touched the item in the process . This is more when a cop takes the seized drug stash home after work and then brings it bak in to work the next day to turn it ito the Evidene Lockerl There was ample time to screw around with the evidence which thereby may exclude the evidence.
And whatever labs are used, they will be fully credentials and their own security protocols will have been reviewed and approved. Same with employees.
Somebody has web wartching too much Law and Order!

