| Trophies |
|
| Action | Result |
| Complete all cases on the Arson desk | Moth To A Flame (Gold) |
| Complete all cases on the Homicide desk | The Simple Art Of Murder (Bronze) |
| Complete all cases on the Vice desk | No Rest For The Wicked (Bronze) |
| Complete all cases on the Patrol desk | Police Academy (Bronze) |
| Complete all cases on the Traffic desk | Paved With Good Intentions (Bronze) |
| Complete a single street crime case. | A Cop on Every Corner (Bronze) |
| Stop a fleeing Suspect with a warning shot as an LAPD Detective. | Not So Hasty (Bronze) |
| Chase down and tackle a fleeing suspect on foot as an LAPD Detective. | Asphalt Jungle (Bronze) |
| Disable a Suspect vehicle with help from your partner. | Traffic Stop (Bronze) |
| Use evidence to prove a lie as an LAPD Detective or Investigator. | The Straight Dope (Bronze) |
| Find and inspect a clue as an LAPD Detective or Investigator. | One For The File (Bronze) |
| Clear a case finding every clue as an LAPD Detective or Investigator. | Golden Boy (Bronze) |
| Find and solve an inspection puzzle. | The Plot Thickens (Bronze) |
| Keep the needle above 80mph for more than ten seconds while driving. | Lead Foot (Bronze) |
| Drive more than 194.7 miles. | Miles On The Clock (Bronze) |
| Shoot and kill a total of 100 bad guys. | Dead Men Are Heavier (Bronze) |
| Kill at least one bad guy with every gun. | Roscoe And Friends (Bronze) |
| Tail a suspect without being spotted, in a single case. | The Shadow (Bronze) |
| Discover all landmark buildings around the city. | Star Map (Bronze) |
| Tail Candy Edwards from the parking lot to her destination without using cover or going incognito, except when staring or picking up the tail. | The Moose (Bronze) |
| Complete a brawl without losing your hat as an LAPD Detective or Investigator. | Keep A Lid On (Bronze) |
| Drive 5 different vehicles. | Auto Enthusiast (Bronze) |
| Drive 40 different vehicles. | Auto Collector (Bronze) |
| Respond to 20 street crimes cases. | Johnny On The Spot (Silver) |
| Complete all street crime cases. | The Long Arm of the Law (Silver) |
| Complete a story case with a five star rating. | The Up and Up (Silver) |
| Achieve maximum rank | The Brass (Silver) |
| Bring down a total of 30 bad guys with head shots. | Wooden Overcoats (Silver) |
| Correctly branch every question in every interview in a single story case. | The Third Degree (Silver) |
| Use four intuition points in conversation with a single suspect, correctly branching each question. | The Hunch (Silver) |
| Rack up $47,000 in penalties during a single story case. | Public Menace (Silver) |
| Drive every vehicle in the city. | Auto Fanatic (Silver) |
| Find and inspect all gold film canisters. | Hollywoodland (Silver) |
| Reach 100% Game Complete. | The Naked City of the Angels (Gold) |
| Complete all story cases with a five star rating | Shamus To The Stars (Gold) |
| Find and inspect 95% of all clues. | Magpie (Gold) |
| Collect all other Trophies to unlock. | Platinum Trophy (Platinum) |
| At the Bus Shooting, talk Felix Alvarro into giving up the Marines involved in the Coolridge heist. | The Fighting Sixth (Bronze) |
| At Ray's Cafe, find the bloodstained knife on your first sweep of the crime scene. | Stab-Rite (Bronze) |
| At Elysian Fields, outwit Leland Monroe when discussing his developments or advertising campaign. | Huckster (Bronze) |
| At the Bamba Club, get Dick McColl to give up the license plate of Celine Henry's male companion. | Round Heels (Bronze) |
| Unlockable Outfits |
| Different outfits are unlockable for Cole with some having benefits and others just appearance. |
| Action | Result |
| Awarded for linking your game/PSN account to Rockstar's "Social Club" | Chicago Lighting - Enhances accuracy with the BAR, Thompson, and the shotgun |
| Awarded for reaching rank 8 | Sunset Strip - No Bonus |
| Awarded for reaching Traffic Desk | Golden Boy - No Bonus |
| Awarded for reaching rank 3 | Sword of Justice - No Bonus |
| Awarded for reaching rank 13 | The Outsider - No Bonus |
| Awarded for reaching rank 18 | Hawkshaw - Damage Resistance |
| Awarded for reaching rank 18 | Hawkshaw - Damage Resistance |
| Complete the Badge Pursuit challenge | Button Man - Carry extra ammo for all weapons |