Hi,
Replying to your requests.
I'm almost sure that this was already replied sometime back, but here it goes anyway.
View attachment 1189311
Scene 3 - to unlock it you must choose Dr.Eihart instead of Dr.Schmidt.
Dr.Eihart will ask for the docs in Dr.Schmidt office, you need to ask Harold to help you get in the office.
Scene 7 - In the police station when talking to the detective choose to call the Taxman.
Scene 8 - In the police station when talking to the detective choose to call Carl.
I hope that this helps!