by migrants in Germany up by 92,000 in 2015

Crimes committed by migrants in Germany increased by 79 per cent in 2015, according to figures released by the Federal Criminal Office.

Nearly one in five offences committed by migrants or refugees in Germany last year were violent crimes, such as assaults, robberies or 'threatening behaviour'.

However, despite reports of sex mob attacks and public molestation cases involving asylum seekers across Germany, just one per cent of crimes committed by migrants were sex crimes.

Rising: Crimes committed by Migrants and refugees, pictured in front of the State Office for Health and Social Affairs (LaGeSo) in Berlin on Tuesday, increased by 79 per cent from 2014 to 2015

And while the number of crimes by immigrants increased in comparison over 2014 to 2015 by 79 per cent, the number of refugees at the same time rose by 440 percent.

Notably, genuine asylum seekers from countries like Syria, Iraq and Afghanistan were substantially more law-abiding than economic refugees from the Balkan countries.

This the third situational 'Crime in the context of immigration' report of the Federal Criminal Office (BKA) - which is classified for police and civil servants eyes only - but was leaked to best selling newspaper Bild.

It covers crimes by immigrants from January to December last year, a time when over a million asylum seekers poured into Germany. The data comes from 13 of the 16 states which make up the Federal Republic.

The number of criminal offences committed by asylum seekers rose to 208,344 - 92 000 more than in the previous year. But the BKA states; 'The vast majority of asylum seekers commit no crime'.

In 2015, the number of criminal offences committed by asylum seekers rose to 208,344 - 92 000 more than in the previous year

Crime rose steadily in the first six months of the year but tapered of to become almost stagnant by the end of it, even though more refugees arrived in the second half.

The nature of the offences appears to be mostly minor: 28,712 cases of riding on public transport without paying the fare, 52,167 incidents of forging paperwork in a bid to get money, 85,035 cases of theft, mosty shoplifting - nearly double those of 2014.

Assaults, robberies and what Germany classes as 'predatory extortion' and 'offences against person freedom,' including threatening behaviour, doubled over 2014 with 36,010 cases, accounting for 18 percent of the crime total.

And sex crimes - the fuel for right-wing extremists who have launched a black propaganda campaign on the Internet to brand all asylum seekers as rapists and child molestors following the events in Cologne on New Year's Eve - remain low, under one percent.

Logged last year were 1,688 cases of sexual offences, including against children, including 458 rapes or acts of 'sexual coercion.'

Hamburg, Bremen and North Rhine-Westphalia, three states governed by centre-left SPD parliaments, did not deliver refugee criminal data to the BKA.

That means the events in Cologne on December 31, when hundreds of women were sexually molested or robbed by marauding gangs of immigrant men, are not included in these statistics.

The report goes on to state that there were 240 attempted murders by immigrants - 127 in 2014 - and in two-thirds of all cases, perpetrators and victims were of the same nationality. One German was murdered, 27 immigrants were killed by other immigrants.

Syrians are officially listed as making up the bulk of asylum seekers - 48 percent - with them being suspected of 24 percent of the crime. Serbs account for two percent of refugees but are suspected of 13 percent of the total number of crimes.

The crime figures covers crimes by immigrants from January to December last year, a time when over a million asylum seekers poured into Germany

'Syrians, Afghans and Iraqis are the largest group of immigrants, but are less frequently delinquent in relation to other groups of migrants,' said Bild.

'Proportionately more offenders were found among immigrants from the Balkans (Kosovo, Albania, Serbia), Eritrea and Nigeria.'

As to terror suspects hiding among genuine refugees, the report stated that there were 266 instances individuals suspected of being 'fighters and members of terrorist organizations abroad.'

Eighty were ruled out, 186 cases are still being probed. The report called the infilration of militants into the country 'a growing trend.'

Friedrich Kotter, head of Kotter, Germany's biggest security company after Securitas, said much of the problem was to do with boredom, with people having nothing to do in the asylum centres.

He said: 'In the first few weeks it was always quiet after they arrived, but then they started to get really bored. There is also intercultural stress in the large camps.

'They simply need something to do, challenges, for example learning a language.

'Simply sitting there is not sustainable even in the short-term. The government needs to do more otherwise it is easy to predict where this will go.'

His fears that asylum accommodation is the root of criminality were confirmed in Bavaria where Interior Minister Joachim Herrmann, 59, from the CSU (Christian Social Union) said there had been 17,246 police actions in Bavarian asylum accommodation last year. In comparison to 2014, that was an increase of 270 per cent.

Speaking to the local government he said: 'The police are absolutely at their limits in keeping the situation under control.' He added that the police are also increasingly the target for aggression and in particular women police officers.