Trying to check if walkspeed is 16 only and not over?

local char = game.Workspace:FindFirstChild("Humanoid")

if char.walkspeed>16 then
	print("you hacker")
end

Workspace.Script:1: attempt to index a nil value is the error.

My intentions are to make sure no one is speed hacking in my game, sense filteredenabled doesn't cover that. I want to eventually ban the player for the game in the if statement, but I used print to make sure it works, which it doesn't.

game.Players.PlayerAdded:Connect(function(P) --When a player join this code run
	P.CharacterAdded:Connect(function(C) -- This check if the character spawned
		local Hum = C:FindFirstChild("Humanoid") --This find the humanoid
		Hum.Changed:Connect(function(Prop) -- This run when a property of the humanoid changes
			if Hum.WalkSpeed>16 then --If the walkspeed is superior to 16
				P:Kick("you hacker") --Kick the player 
			end
		end)
	end)
end)

I hope this help :)

Do you wan't help and there is the script:

local char = game.Players.LocalPlayer.Character.Humanoid
local player = game.Players.LocalPlayer

if char.WalkSpeed == 16 then
player:Kick("you hacker")
end

while true do
wait(.01)
local player = game.Players.LocalPlayer
local char = player.Char or player.CharacterAdded:()
if char.Humanoid.WalkSpeed >16 then
print("you're a hacker, be gone")
player:Kick("Exploiting")
wait(.01)

Basicly u scripted it wrong.

-- Local Script
-- Put inside StarterGui

local player = game:GetService("Players").LocalPlayer
local char = player.Character
game.Players.PlayerAdded:Connect(function()
wait(0.1)
if char:WaitForChild("Humanoid").WalkSpeed = 16 then
print(Player.Name.. " is not a hacker."
else
print(Player.Name.. " is hacker."
end
end()