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