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Chinatown Detective Agency exposes plenty of government conspiracies. For instance, The Curious Case Of Crystal Clear investigates a government scheme to poison Singapore's water supply while offering purified water on a subscription basis to the elite. If cases like that intrigue you, you'll want to keep working with Keeran Iyer.

Related: Chinatown Detective Agency: Improving Your Online Search Techniques

The following case with Keeran Iyer, Bottled Up, focuses on the mysterious Wu Wang Group's influence on various government institutions. To learn more about this corrupt relationship, you'll have to get into the mind of one of the transit authority's middle management professionals, Gilbert Ma. This task will require some bribery with a bottle of good wine.

What Is Gilbert Ma's Taste In Wine?

Amira talks to a bartender at Wine Haus in Chinatown Detective Agency

Keeran Iyer will provide your first lead, informing you that Ma frequents a wine bar across the street in the Civic District, Wine Haus. Enter Wine Haus and make a beeline for the bartender. After speaking with him, Amira will order a complicated cocktail called the Startled Bartender. This order will buy you time to hack into Wine Haus's register.

First, approach the register and select the Investigate option to hack the register. Then, you'll have to complete a memory match puzzle depicted below.

The solution to the Wine Haus register hack puzzle in Chinatown Detective Agency.

Once you open Gilbert Ma's transaction history, you'll discover that Ma favors red wines from the Burgundy region of France.

Gilbert Ma's Transaction History on Wine Haus's hacked register in Chinatown Detective Agency

Which Wine Should You Buy To Bribe Gilbert Ma?

Toa Payoh- Chinatown Detective Agency

Now that you know what kind of wine Gilbert Ma likes, you'll need to buy a bottle to bribe him. But unfortunately, wine is a depleting resource in dystopian Singapore. Luckily, Justin Koh knows of a spot that still sells bottles in Toa Payoh, Terroir. So take the subway to Toa Payoh and click on the Terroir icon to begin your shopping mission.

A blurb from wine-searcher.com explains the Morey St. Denis wine region next to a screen shot of Amira shopping in Terroir in Chinatown Detective Agency.

Finding the right wine to bribe Gilbert Ma with is a little tricky. Some grapes, such as Champagne, are easy to single out and ignore. However, it's best to research every bottle you come across to find the correct wine. With some deep digging, you should discover that the wine to buy is the Morey St. Denis from 2026.

How To Find Gilbert Ma

Amira Darma stands in front of Gilbert Ma's table at Madame Chan's Palace in Chinatown Detective Agency.

After purchasing the bottle of Morey St. Denis, you'll get a call from Keeran Iyer informing you of Gilbert Ma's location. Luckily, he is in Chinatown at Madame Chan's Palace, right across from your office. Once you do the necessary traveling, you'll need to find a man wearing a navy suit and white shirt.

While finding a man in a navy suit seems like s simple task, you'll learn that it is more complex than it sounds. A couple of people at Madame Chan's Palace are wearing similar attire. However, Gilbert Ma is bald and hunched over a table with his jacket off. Therefore, you'll see navy trousers and a white shirt.

Through your discussion with Gilbert Ma, you'll learn two vital names: Ray Lam (the transit authority employee) and Xu Enling (the Wu Wang Group contact bribing Lam). Then Gilbert Ma will ramble incoherently for a few hours until he passes out.

After Gilbert Ma passes out, travel back to Keeran Iyer's office in the Civic District to relay the information back to him and collect your commission.

Next: Chinatown Detective Agency: A Stamp Of Approval Case Walkthrough