Police officers knocked on the shuttered storefront for about 15 minutes before someone answered and told the officers that there was a few acquaintances chatting in the shop.
Police discovered a passage in the wall hidden behind a drink refrigerator, where the suspects had crossed into the cafe from the store next door.
Police also found a crowd people in the store hiding behind a curtain, as the internet cafe was being run as a coffee house where the mostly-male clients could drink tea and play board games.
A total of 31 people were fined 3,150 liras each for violating the law.