sc_speedtrap: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/sc_speedtrap - from package: scamper

You may install the required package with command apt-get install {package}

Error in other languages:
sc_speedtrap: bevel nie gevind nie
sc_speedtrap: comandă negăsită
sc_speedtrap: comando não encontrado
sc_speedtrap: commande introuvable
sc_speedtrap: command not found
sc_speedtrap: käsku ei ole
sc_speedtrap: không tìm thấy lệnh
sc_speedtrap: komanda nerasta
sc_speedtrap: Kommando nicht gefunden.
sc_speedtrap: kommandot finns inte
sc_speedtrap: komut yok
sc_speedtrap: nie znaleziono polecenia
sc_speedtrap: níor aimsíodh an t-ordú
sc_speedtrap: no se encontró la orden
sc_speedtrap: no s'ha trobat l'ordre
sc_speedtrap: opdracht niet gevonden
sc_speedtrap: parancs nem található
sc_speedtrap: perintah tidak ditemukan
sc_speedtrap: príkaz nenájdený
sc_speedtrap: příkaz nenalezen
sc_speedtrap: команда не найдена
sc_speedtrap: командата не е открита
sc_speedtrap: 命令找不到
sc_speedtrap: コマンドが見つかりません