Example Handsup

--CLIENT SIDE CODE--
local handsup = false

RegisterNetEvent("csrp_Handsup")
AddEventHandler("csrp_Handsup", function()
    if not handsup then
        TaskHandsUp(GetPlayerPed(-1), -1, GetPlayerPed(-1), -1, true)
        handsup = true
    else
        UpdateTaskHandsUpDuration(GetPlayerPed(-1), 2)
    end
end)

-- SERVER SIDE CODE --
AddEventHandler("chatMessage", function(source, n, message)
    if message == "/handsup" then
        TriggerClientEvent("csrp_Handsup", source)
    end
    CancelEvent()
end)