Spring
Before you can use the microscope to find out about the spring, you must look at both tire marks at the casino (not the bike's wheel but the treads on the ground) and the ramp.

Daredevil Disaster evidence
Look at the doorknob in Cory Millatizo's office and compare it to the fingerprint on the
motorcycle's engine.

Search warrant for cori
After collecting both parts of the spring combine them in the evidence window. Go back to the casino look at the ramp tire marks and the marks before you get to the ramp. Go back to the lab and use the microscope to look at the spring, your case and evidence will be updated.

Fly Larva (Second Case)
In the asylum, the vics blood is on the ground near Warrick ( its like infront of him ) You can click on it, then there will be a crack in the floor, click on that, then you will find a little blowfly larva, and then take it back to the analyzer place. Later on you will get a warrant for Thomas' daughter. And there is a blowfly larva in the fireplace.

Garbage Duty.
Check the dumpster in the restaurant alleyway. You will find a bunch of papers with orders on it. The victim had the asparagus omlet.