Hearing : Snaresbrook Crown Court , pictured , was told that Shamsul Islam molested a string of girls on public transport in London . A sex attacker molested four teenage girls then claimed he did not know what he was doing because he was fasting for Ramadan , a court heard today . Shamsul Islam , 33 , sidled up to girls as young as 15 on empty buses and trains across east London then sexually assaulted them . When one of his victims confronted him he said ' I 'm sorry , I 'm fasting , I do n't know what I 'm doing , ' Snaresbrook Crown Court was told . Islam , from Barking , pleaded guilty to four counts of sexual assault , and was sentenced to three years in prison - after which he will be deported to his home country of Pakistan . Judge Sheelagh Canavan branded him ' a danger to society ' . Sentencing him to three years ' imprisonment , Judge Canavan described him as a ‘ serial , sexual pervert ' and called for him to be removed from the country as soon as possible . She said : ‘ Your devotion to your religion is only convenient to you when it gives you an excuse for your sexual misconduct . ‘ You are not a national of this country , and the sooner you are removed from the country the better . The first attack took place on a C2C train going from Essex into central London , the court heard . Prosecutor Karl Masi said : 'The defendant got onto the train and sat down beside [ the first victim ] - even though there were plenty of empty double seats on the carriage . 'The victim noticed Mr Islam was rubbing his elbow up against her . She tried moving away but the defendant kept moving closer to her . He would look away whenever she tried to look at him . 'At one point , after the defendant had got up and sat back down again , the victim felt him touching her stomach and looked down to find his hand under her top . 'When she challenged him the defendant got up and moved . ' The second assault , on a 15-year-old girl , happened on a bus in mid-afternoon a few days later , the court was told . The teenager boarded the bus and immediately felt uncomfortable because Islam had been staring at her at the bus stop . 'There were other double seats available yet the defendant chose to sit next to her , ' Mr Masi said . 'He was staring at her before moving his arm and touching her right leg with his hand . He then tried to get his hand under her top and on top of her leggings . ' The third attack , which happened on another bus the same day , left the 16-year-old victim 'paralysed with fear ' . Islam sat next to her , before using his fingers to caress the girl 's stomach and moved his hand down to her shorts . Attack : One of the assaults took place on a C2C train from Essex to London ( file photo ) A few weeks later he boarded a different bus where he sat next to a girl and grabbed her breast . When the girl confronted her attacker he replied : ' I 'm sorry , I 'm sorry , I 'm fasting , I do n't know what I am doing . ' Mr Masi said that all the victims were upset by the assaults and were left in floods of tears . The first victim said she now 'questions how others look at her ' in an impact statement read to the court , while another said she becomes physically sick when using public transport . Islam was arrested on September 17 after police used his Oyster card to track him down . Judge Canavan said : ‘ I don ’ t underestimate the impact this has had on the psychological wellbeing of the victims . ' Speaking about the first incident , the judge said : ' I have no doubt that you knew she knew you were touching her and indeed the thrill for you in part was the fright that you were causing to that woman . I have no doubt that that fed into your sexual satisfaction . ‘ When subsequently interviewed you said that you couldn ’ t remember the incident . You attempted to blame Ramadan as causing you to forget . As became plain during the course of the interview that was a lie - you did know what you had done. ’ She said that the second victim , aged just 15 , was 'very uncomfortable ' , adding : ‘ I have no doubt you targeted her too and I have no doubt that part of the sexual thrill of your offending was the helplessness of the woman who was the subject of your sexual assault . ‘ I say `` woman '' , but she was in fact a child . She got off the bus and burst into tears and rang her mother . But that was clearly not sexually satisfying enough for you because within 90 minutes you were assaulting another woman. ’ In relation to the fourth attack , Judge Canavan said : 'You said you were sorry , and that you did not know what you were doing because you were fasting . 'It ’ s my fervent wish that you will be immediately deported from the UK . '
Shamsul Islam , 33 , attacked one girl on a train and three others on buses . He sat next to them then started rubbing against them and stroking them . When one confronted him he said , ' I 'm fasting for the sake of Allah!'