I jut had an instance where a murder was reported and I happened to get there before the enforcers, despite taking a stop at a pawn shop first.
I was able to knock and talk to the victim's partner before they got kicked out, and had the option to ask "Can I come in and take a look around?" which they said yes, and now i have crime scene access without having to sneak around.
Admittedly I did close the security doors and disable cameras too before Enforcers showed up, idk if that bought me time.. But that there's an option at crime scenes to ask partners "Can I come in and take a look around?" indicates there's an interaction that's being cancelled by enforcers Kicking them out.
Idk where vic's partners go when kicked out, and have had alot of trouble finding them after. But It would make sense and I think be feasible to make the deceased's partner stand by outside their Apt for questioning before disappearing into the city. While still counting them as within their residence to enable asking for that much coveted Crime scene access.