And nobody can say absolutely for sure whether a murderer had the mens rea to charge him with first degree.
This issue is that they now have the tools to charge you with obstructing an investigation that hadn't even begun yet, when you took the action.
We all understand how this scenario is obstruction:
1. -Investigation Begins-
2. Police:We would like to see #source_of_potential_evidence.
3. Person:Sure thing. -deletes #source_of_potential_evidence-. Oh, sorry guys, I don't have that.
This is what happened:
1. Person:Oh, this doesn't look good. I don't think I want to keep this on my computer. -deletes #source_of_potential_evidence-
2. -Investigation Begins-
3. Police:We would like to see #source_of_potential_evidence.
4. Person:Sorry guys, I don't have that.
If there is not yet an investigation, it's not yet evidence. How can you be held responsible for destroying evidence if it's not yet evidence?
This isn't about maintaining the integrity of investigations. It's about giving prosecutors the ability to get people when they otherwise couldn't.