Complete walkthrough of all Detective Points (DP) events in Chapter 1 of The Legend of Heroes: Trails from Zero. Includes main story and side quest DP.
DP is the abbreviation for Detective Points, a value given to you for tasks you perform while doing your duty as the SSS. If you’ve played the Trails in the Sky or Trails of Cold Steel arcs, you will remember this as BP (Sky) and AP (Cold Steel) and it works the exact same way here.
The most common way of earning DP is via the completion of Quests, be it in main or side. More importantly, however, you can earn DP based on the choices you choose when asked questions along with performing optional objectives in boss battles such as defeating the boss in a certain number of turns. As you may expect, this means DP is missable and you don’t have much room to miss many if you want to get the top rank (and the Trophy/Achievements that come with it). Fortunately, this page will list every event that rewards DP for Chapter 1, along with links to find out more.
All Chapter 1 Day 1 DP
Main Story Events
| Event | Choice/Condition | DP |
| Monster Damage Investigation | While examining the attack at the hospital, examine the wooden boxes to the left and the railing left of that after you decide to give your report to Cecile | 2 |
Side Quest Events
| Quest | Availability | DP |
| Overdue Book Retrieval | At the start of the day | 3 |
| Hunting for Ingredients | At the start of the day | 6 |
| Assistance With New Service | At the start of the day | 3 |
| Search for the Kitten’s Owner (Hidden) | When returning from Armorica Village | 5 |
All Chapter 1 Day 2 DP
Main Story Events
| Event | Choice/Condition | DP |
| Leaving the tunnel (Monster Damage Investigation) | Both howl and appearance (3rd) | 2 |
| Mainz Village meeting (Monster Damage Investigation) | Monsters’ objective (3rd) | 3 |
| Mainz Village meeting (Monster Damage Investigation) | Unknown (2nd), Wolves’ Abilities (3rd), Black Wolves (1st), Property Damage/Injuries (4th) | 2 |
| Mainz Village meeting (Monster Damage Investigation) | Shizuku MacLaine (3rd) | 1 |
| Monster Damage Investigation | Completing the Request at the end of the chapter | 5 |
Side Quest Events
| Quest | Availability | DP |
| Inspection Assistance Wanted | At the start of the day | 5 |
| Abandoned Apartment Monster Cleanup | At the start of the day | 4 |
| We Long For Mishy (Hidden) | At the start of the day before going to Mainz | 5 |
| Mainz Mountain Path Monster Extermination | At the start of the day | 4 |
Chapter Total DP
| Chapter | Game Total | Rewards |
| 50 | 91 | Spirit Badge (56 DP), Septium Vein (70), Gladiator Headband (89) |
