How do I check if a player has a tool in their backpack?

Hello. I have the following script

local gui = script.Gui
local gui2 = script.Gui2
local domClickedEvent = game.ReplicatedStorage.Events.DominusClicked
local Tool = game.Players.LocalPlayer.Backpack:FindFirstChild("Dynamite")
domClickedEvent.OnClientEvent:Connect(function()

    if Tool then 

        print("its good")
        gui2.Enabled = true
        game.Players.LocalPlayer.Backpack.Dynamite:Destroy()
        wait(8)
        game.Workspace.Boulders:Destroy()



    else

    gui.Enabled = true


game.Players.LocalPlayer.PlayerGui.Dominus.NextClicked.Enabled = true
end
end)

Basically this should happen - the script should check if the player has the tool named "Dynamite". If the player does then it makes gui2 appear, if not then gui should appear. gui keeps on appearing everytime, even though the player has Dynamite in their backpack. The Dynamite is not held when this is done, and this is a localscript located in startergui.

This is the script that triggers the event if it helps.

local clickDetector = script.Parent
local domClickedEvent = game.ReplicatedStorage.Events.DominusClicked
local debounce = false

clickDetector.MouseClick:Connect(function(player)
    if not debounce then
        debounce = true
        domClickedEvent:FireClient(player)
        print(player.Name.. "has clicked the brick")
        wait(1)
        debounce = false




    end
end)

I do not know why the script is unable to detect the tool, any help would be appreciated.

Thank you.