Here is the full list of all 22 Ghost Files: The Face of Guilt achievements. It takes around 4-5 hours to unlock all of the achievements on Windows.
Finish all the Minigames without skipping them.
Defeat the Killer.
Find all collectibles.
Find 30 collectibles.
Discover the identity of "The Guilty Man".
Complete your ballistic forensic analysis.
Defeat one Soul Collector.
Locate the Killer's hideout.
Finish any Hidden Object Puzzle with less than 4 mistakes.
Complete a Hidden Object Puzzle in less than a minute.
Disable three security cameras.
Get rid of one guard.
Find Anna Frick.
Put out the flames.
Finish 3 Hidden Object Puzzles in less than 10 minutes.
Find 3 Hidden Objects within 3 seconds.
Finish 3 Hidden Object Puzzles without a hint.
Complete a Minigame in less than a minute.
Compare two blood samples.
Complete your first forensic analysis.
Complete a Hidden Object Puzzle without a Hint.
Find one collectible.