....a driving licence.
Our friends in Poland seem to have found a great way to beat the system. Call yourself Mr Prawo Jazdy, which is polish for driving licence.
There are a lot of them about.
It was discovered that the man every member of the Irish police's rank and file had been looking for - a Mr Prawo Jazdy - wasn't exactly the sort of prized villain whose apprehension leads to an officer winning an award.
In fact he wasn't even human.
"Prawo Jazdy is actually the Polish for driving licence and not the first and surname on the licence," read a letter from June 2007 from an officer working within the Garda's traffic division.
"Having noticed this, I decided to check and see how many times officers have made this mistake.
"It is quite embarrassing to see that the system has created Prawo Jazdy as a person with over 50 identities."