The man, who came to Germany in 1998 without a passport, claims to be from various North African countries including Algeria and Morocco.
He has allegedly been using legal loopholes to stay in Germany despite having a staggering 542 criminal investigations against him.
The migrant has been accused of a string of crimes including assault, theft, robbery and selling drugs, local media said.
He was recently arrested by police but authorities have clue what the man’s name is nor where he comes from.
As a result, they are unable to deport him to his country of origin.
He reportedly lives on the streets of Frankfurt, a city in central Germany, according to Bild newspaper.
High commissioner Ruedigar Buchta said: “A third of the proceedings were for possession and purchase of narcotics.
“Some were for the fraudulent acquisition of services like fare dodging.
“Added to this is assault, theft and robbery, and many offences against the Residence Act.”
He spoke an unknown language and refused to cooperate with the authorities as well as being deported.
He was allegedly born in 1959 somewhere in North Africa but no country has shown any records of him.
The only information German authorities have on him are his fingerprints but database searches have yielded no matches.
Police have since had to release the man.