Sherlock Holmes vs. Jack The Ripper Cheats

Accomplish the indicated achievement to get the corresponding number of Gamerscore points:

Curious (80 points): Find out how to observe things closely right from the start...
Art lover (80 points): The true art lover will have no difficulty...
Crime doesn't pay (80 points): Don't be the accomplice to a theft...
Dogged (80 points): How does Jack feel when he handles the knife?
The crime weapon (10 points): What weapon does Jack the Ripper use?
Make-up artist (10 points): What does Jack the Ripper look like?
Pinpointing the killer (10 points): In which district does Jack the Ripper live?
Relentless logic (10 points): Elementary...
The killer's identity (10 points): Who is Jack the Ripper?
Complex case (150 points): The last word.

Additionally, there are 30 secret achievements:

Charitable soul (30 points): Treat the captain.
Clever (10 points): Open the briefcase belonging to agent Humphries.
Director (10 points): Reconstruct the hand movements of Polly Nichols's murderer.
Rational (30 points): Fill in the deduction board.
Methodical (10 points): Reconstruct Walter Sickert's cane.
Patient (10 points): Reconstruct the torn up reports.
Organised (10 points): Fill in the timescale of the murder of Polly Nichols.
Model pupil (10 points): Open the jar containing the heart.
Skilful (10 points): Use the magnet to retrieve the lock pick.
Eagle eye (10 points): Retrieve the amulet from under the floor.
Ingenious (30 points): Access the first floor of the Finley lodgings.
Snake charmer (30 points): Obtain the tanner's mask.
Handyman (10 points): Repair the gas leak.
Logical mind (10 points): Find the encyclopaedia of perfume.
Sensitive nose (10 points): Solve the puzzle of the perfume.
Strategist (30 points): Enter the police station unseen.
Lock picker (10 points): Pick the lock leading to the cells.
Deciphering expert (10 points): Decipher the coded message.
Technician (10 points): Reconnect the cables on the goods lift.
Tenacious (30 points): Access the barricaded room on the first floor.
Dexterous (10 points): Dismantle the combination lock.
Cool (30 points): Bluff the crooks.
Cheeky (10 points): Obtain the clues by phone.
Historian (10 points): Open Tumblety's briefcase.
Resourceful (30 points): Obtain access to the butcher's shop.
Analytical mind (10 points): Fill in the timescale of the double murder.
Shrewd (30 points): Find Sherlock some water.
Journalist (10 points): Replace the correct labels on the compartments.
Surgeon (10 points): Find the internal organ missing from the corpse.
Snoop (10 points): Find the correct file at the Imperial Club.