new
    Group:g_groupLSPD,
    Group:g_groupFBI;

YCMD:whatever(playerid, params[], help)
{
}

public OnGameModeInit()
{
    // Set up the groups.
    g_groupLSPD = Group_Create("LSPD");
    g_groupFBI = Group_Create("FBI");
    // Disable the command by default.
    Group_SetGlobalCommand(YCMD:whatever, false);
    // Enable the command for these groups.
    Group_SetCommand(g_groupLSPD, YCMD:whatever, true);
    Group_SetCommand(g_groupFBI, YCMD:whatever, true);
}