[EiresJason]

Is this what you wanted? Like Vince said; you were basically saying 'if GetPlayerWantedLevel(playerid) is greater than 1, or equal to 1, then lower the wanted level.

pawn Код:

forward WantedDown(playerid); 
public WantedDown(playerid) 
{ 
    new i; 
     if(GetPlayerWantedLevel(playerid) == 1) return SetPlayerWantedLevel(playerid,0); 
     if(GetPlayerWantedLevel(playerid) == 2) return SetPlayerWantedLevel(playerid,1); 
     if(GetPlayerWantedLevel(playerid) == 3) return SetPlayerWantedLevel(playerid,2); 
     if(GetPlayerWantedLevel(playerid) == 4) return SetPlayerWantedLevel(playerid,3); 
     if(GetPlayerWantedLevel(playerid) == 5) return SetPlayerWantedLevel(playerid,4); 
     if(GetPlayerWantedLevel(playerid) == 6) return SetPlayerWantedLevel(playerid,5); 
    SetPlayerScore(playerid, +1); 
    SendClientMessage(i, COLOR_TOMATO, "You was unstopple for police Congrats."COL_LGREEN" (+1 Score)"); 
    return 1; 
}

EDIT: Luis got there first xD