What follows is a spoiler-free walkthrough for NALE chapter 1. This tells you everything you need to do in order to fully pass through the chapter, in minimal detail so as not to spoil the fun of playing through it.

1. Begin the game
2. Leave the office via the east exit
3. Once in court, play through to the 1st cross-examination
4. [1] PRESS every part of the statement, and when asked "is this important", select "Yes"
5. [1] This will add a new part to the statement; PRESS this new part. When asked "is this important", select "Yes"
6. Play up to the 2nd cross-examination
7. [2] Present "MERYL PICTURE A" to the statement part that starts "I can't..."
8. Play up to the 3rd cross-examination
9. [3] At the statement part that begins "Meryl and I...", present "MERYL PICTURE B"
10. [3] This will add a new part to the statement.
11. [3] At the statement part that begins "Lately Meryl..." present "JACKIE HATES MERYL"
12. When shown a list of potential suspects, pick the middle option in the list
13. Play up until the 4th cross-examination
14. [4] PRESS "I waited..."
15. [4] Select "Yes"
16. When asked to present a piece of evidence, present TRAVIS's LIGHTER
17. Play through to the end of the chapter