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.
Discover the identity of "The Guilty Man".
Defeat the Killer.
Complete your ballistic forensic analysis.
Disable three security cameras.
Locate the Killer's hideout.
Defeat one Soul Collector.
Get rid of one guard.
Find Anna Frick.
Complete a Hidden Object Puzzle in less than a minute.
Finish any Hidden Object Puzzle with less than 4 mistakes.
Find 3 Hidden Objects within 3 seconds.
Put out the flames.
Finish 3 Hidden Object Puzzles in less than 10 minutes.
Finish 3 Hidden Object Puzzles without a hint.
Compare two blood samples.
Complete your first forensic analysis.
Complete a Hidden Object Puzzle without a Hint.
Complete a Minigame in less than a minute.
Find one collectible.
Find all collectibles.
Find 30 collectibles.