Ok First Shot at a WalkThrough....Most of the Clues will be found Through Questions with the suspects.
1st.Cliff Harrison....Vehicle Reported as Stolen--Answer--Truth
Motive For Flight--Answer--Doubt
Vehicle purchase detalis--Answer--Truth
Also if you can stop Harrison before the Police baracade you unlock---Nowhere In a Hurry.
2nd.Coombs.........Detalis of Transaction---Answer---Truth
Description of suspect---Answer--Truth
Association with Marquee--Answer--Truth
Check Payment details----Answer---Doubt
After talking to Coombs go to the gamewell and call in..then go to 146 North Fremont ave. After going there go to the Marquee Printing Company to talk to Leitvol it will add him as a new P.O.I then go to the Police Station to talk to Belasco.
3rd.Belasco.....Stolen Auto Courier---Answer---Doubt
Association with Archer--Answer--Lie---Use Fake Address as Clue.
Auto Theft Racket---Answer---Doubt
Stolen vehicles warehoused---Answer--Doubt
4th.Archer........Stolen Kaiser Frazer--Answer--Doubt
Association with Belasco--Answer--Lie--stolen auto courier as clue
Stolen Auto Courier---Answer--Doubt
Also by getting those right you will get Femme Imbecile. Now go to Marquee Printing Company.
5th.Leitvol........Knowledge of theft racket--Answer--Doubt
Pink slip supply--Answer--Doubt
Coombs Auto deliveries--Answer--Doubt
You will now be able to view his ledger...scroll your finger over top of Bigelow's name and press A. Now go to 58 Industrial Street. If during the shoot-out you can make the engine block fall from the ceiling and kill a goon you will unlock--Chop Shop. Just wait until a goon goes behind the desk in the middle of the warehouse.There are 3 clues in the office with Bigelow...2 on the desk when you kick the door in and 1 more on the desk behind the suspect.
5th.Bigelow......Pink slip supply--Answer--Doubt
Association with Leitvol--Answer--Lie--Deliveries Ledger as clue
Now go back to the Marquee Printing Company.
6th.Leitovl........Deliveries to Industrial St.---Answer--Lie--Betting slips
Story goes to cut scene...5 star rating. Hope this helps...Enjoy