A lot of this first mission is a quite reasonable tutorial that helps you learn how the game works, how the menus work and so on in a very "natural" sort of way. You are a new intern, working for Gil Grissom. Just as you start your conversation, a call comes in about a homicide, and you're off.

You learn about your main toolbars - locations, tools, and evidence. Locations lets you get to places to visit. Note that new places will appear there as you track down vital clues. There will always be the three CSI locations on there - the lab, the police station and the morgue.

OK, click on the hotel. POOF you're in the hotel room with a dead woman tied to the bed and Bert Susten, the hotel manager. You learn that when you wave your mouse around, it turns green when it's over something you can investigate. Don't try to go out of order here and investigate other things. The tutorial will end soon enough. For now, do what he's telling you to do.

Click on the body. You see bruising on the neck. Click on the case file. This holds information on victims, suspects and reconstructions (the little videos that show what might have happened). Bert is a suspect, as you can see. You look for means, motive and opportunity for each, plus you have a miscellaneous "other" category for general notes. You need to fill the first 3 fields to make an arrest.

OK, close-up on the neck. This is when you get into the tools for collection and detection. There is a sub-tab in your tools area for each.

Full Details on CSI Tools

Click on the UV light, and then click on the neck to take a look. When you get clues, they automatically go into your files. You don't have to keep any notes yourself.

OK, now click on the cloth on the left. Use your magnifying scope on it. Up in the fold of the fabric you see a hair. When you "see it" the game again automatically lets you know and adds the notes into your files. Now you have to use your collection tool to get that hair.

Full Details on CSI Tools

Tweezer the hair. Now it appears in your evidence list. You'll need the hair later to compare against various hairs you take from suspects. The types of evidence you can have are: trace/prints, documents, and items.

Zoom out and use the gloves to grab the cloth. Nowit's time to talk with the Manager.

CSI Crime scene Investigation Walkthrough