Here is the full list of all 39 Sherlock Holmes Chapter One achievements.
Remember everything.
Present accurate evidence in all accusations.
Interrogate every suspect in the safe murder as a police officer.
Talk to The Pipe in the correct disguise.
Get justice for Fabio.
Lift the curtain on bohemian life.
Refurbish the entire manor.
Open the cabinet of curiosities.
Take pity on a poor girl.
Always advocate for the refugees.
Spare the landlady's feelings.
Disappoint Mycroft.
Kill five enemies.
Find the book.
Hold an eel by the tail.
Open Violet's room.
Save Goliath's life.
Uncover all of the treasures.
Acquire Sherlock's famous violin.
Arrest twenty-five enemies.
Let an old man have his retirement.
Solve all the cases for the police.
Find all the books in the Bazookaeology trilogy.
Arrest ten enemies.
Open Sherlock's room.
Solve the first case on Cordona.
Eavesdrop on your first piece of gossip.
Try to take the easy way out.
Prank Mrs. Nini.
Punch first, ask questions later.
Follow the rules of the Blind Duelling Club.
Investigate the third accident.
Refuse to help Mycroft.
Talk to Dilwyn in his hat.
Complete all Cordona Stories.
Fight in all of the bandit lairs.
Disorient ten enemies with the snuffbox.
Kill fifteen enemies.
Get every achievement.