[DanishHaq]

pawn Code:

if(sscanf(params, "ui", id, wantedlevel)) return SendClientMessage(playerid, COLOR_ORANGE, "USAGE: /setwanted [ID] [WantedLevel]");

Add this under that line:

pawn Code:

if(wantedlevel < 0 || wantedlevel > 6) return SendClientMessage(playerid, COLOR_RED, "Error: Max wanted is 6 and the minimum is 0.");