GLA

The GLA is apparently the anti-crime force on The Land of Grimier. They are inactive most of the time and do not act towards players. They are not actually seen in action, and there is no way to become a member. Actually, there are no actual recgonized members of the GLA, with names or different reputations; there are villagers scattered around the world named "GLA Officer," but that's about it.

Officially, the GLA has only come into action once, and that is when they shut down the Black Market underneath Nightmare Mountain. Players like LoxShot like to put up signs claiming they were investigated by the GLA, and got a positive response, however these are just put up for fun and are false, as the GLA does not act towards players.

Operation
The GLA has a building made of stained hardened clay. Inside, there are two villagers named "Agent" standing behind a counter. There is a ladder leading to the basement, and in the basement stands a villager named "Alarm Guard". The building has no function.

Taking the Black Market example, when an establishment is raided by the GLA, its main building is closed down and cannot be entered. Signs are put up, saying something like "SEIZED BY GLA" or "CLOSED BY GLA". It stays that way for a few weeks, then either re-opens or is permanently closed.

Black Market raid
Somewhere in July/August of 2014, the Black Market was temporarily shut down by the GLA. Fences were put up and redstone was scattered around the area to give the impression of blood. A sign, "CLOSED BY GLA" was put up and stayed that way for nearly 3 weeks.

After the GLA let go of the Black Market, the market began selling quest items instead of trade items and other items. A sign reading "GLA NOT WELCOME" was put up on the entrance to the Market.