Perform the experiment in the Colonial Collection room | The Kew Gardens Drama SH: Crimes and Punishments Guide

Last update: 11 May 2016

When you're done, stay in the Colonial Collection room and place some caterpillars in the Ventilation grid on the ceiling. Go to the place when the Ventilation system engine is (by the wall, near the second door to the Nursery). Start the machine by switching on the Power button, turning off the Transmission, pressing the Starter and then turning the Transmission back on.

Now, activate Holmes's talent and go along the glowing ventilation pipes. As you can see, they lead to the Seed house first. Go inside, approach Albert's desk and activate the Control lever on the right.

Walk along the pipes, until you reach the Nursery. Activate the Control lever on the wall, above the desk.

Deduction - Hamish is guilty

Connect "Deadly precision" with "Ventilation used". You will obtain "Hamish's opportunity".

Other required Conclusions:

• Albert's lack of experience;
• White's lack of experience;
• Sect is not involved;
• Theft and murder;
• Dunne was poisoned;
• Partial theft;
• Hamish's motive.

When connecting all the Conclusions above, you will obtain: "Hamish is guilty", and also a task: Arrest Martyn Hamish.

Head to Scotland Yard. Go through the corridor on the left and open the Door to Inspector's office (second door on the left). Go inside and talk to Lestrade.