Senior doctor suspended after being caught filming up women's skirts by policewoman who was also a victim He used his mobile phone to film women's thighs and groins The offence was serious in nature and his conduct was sexually motivated Policewoman was 'disgusted and upset' that she herself had been a victim Judge: Actions were 'fundamentally outside the behaviour expected' Has had his registration suspended for 12 months Dr Thilanga Kasun Iddamalgoda, 32, a senior doctor, secretly used his iPhone to film up women's skirts and shorts as he sat on the steps of London's Trafalgar Square A senior doctor who secretly used his iPhone to film up women's skirts and shorts has been banned from practising. Dr Thilanga Kasun Iddamalgoda was arrested by plain-clothed policewoman Tiffany Anderson who noticed he was behaving suspiciously near Nelson's Column in London's Trafalgar Square. When the footage was viewed, PC Anderson discovered that she had been the victim of his filming. Dr Iddamalgoda, 32, who lists his occupation as a clinical research fellow at Imperial College London, used his mobile to capture videos of women's thighs and groin areas as he sat in the bustling square last August. A panel sitting at the Medical Practitioners Tribunal Service in Manchester today ruled that his behaviour was so serious that his registration was suspended for 12 months. A spokesman said: 'The offence was serious in nature and his conduct was sexually motivated. Such behaviour is unbefitting of a doctor. 'The Panel has determined that a period of 12 months' suspension is the most appropriate sanction in this case.' The hearing was told that Dr Iddamalgoda sat on the steps of the packed square, outside the National Gallery, where he was surrounded by women dressed for the sunny weather in vest tops, skirts and shorts. The doctor who is pursuing research into heart conditions later accepted a police caution for outraging public decency. Giving evidence before a misconduct hearing at the Medical Practitioners Tribunal Service in Manchester, PC Tiffany Anderson, who caught the doctor in action, said she was 'disgusted and upset' to realise she had been a victim. The officer said she had been on duty at the square with two fellow officers at around 4.45pm on August 19, 2012. She first noticed the doctor sitting near her on the steps but he moved closer to a couple sitting a step up from him. PC Anderson said: 'There was a woman with a very short skirt on. His movement to me seemed unusual - it wasn't particularly getting out of anyone's way or moving from the sun into the shade or shade into the sun. He was also shielding his phone. He couldn't have been shielding it from the sun because there was a lot of shading. He was shielding the screen very closely, so he didn't want people to see. He didn't appear to be reading a text message. Dr Iddamalgoda sat on the steps of a packed Trafalgar Square outside the National Gallery last August, surrounded by women dressed for the sunny weather in vest tops, skirts and shorts He appeared to have his phone to his right, it appeared to be in the direction of the lady in the short skirt. He was sitting two steps in front of me. I caught a glimpse (of his phone) and it was on camera video. His next target to catch his eye was a woman wearing another short outfit. She said: 'She was wearing multi-coloured baggy shorts or skirt, and had walked up the steps. His hands moved around his body - he was changing his phone around as she approached. Dr Iddamalgoda who qualified at University of Aberdeen in 2005 then positioned himself on the lower level of the steps to capture more women on camera - and that is when PC Anderson, who was in plain clothes, alerted her fellow officers of her suspicions. 'He said: "I'm sorry, I'm sorry, it is the first time" and "I'm sorry please don't arrest me." I arrested and cautioned him. PC Anderson said: 'The angle of the iPhone appeared to be waist to chest height. There was one woman in a see-through top doing up her shoe laces and the phone stayed at that level. She then saw the doctor move to the base of the large 'Olympic Clock' which was in Trafalgar Square at the time, which is when she and the other officers approached him. PC Anderson explained she was a police officer and told him she had been watching what he was doing. 'I believe his words were, "I'm sorry, I'm sorry, it is the first time" and "I'm sorry please don't arrest me." I arrested and cautioned him,' she added. The doctor co-operated in handing over his mobile phone and giving her the access code. The officer found four saved videos which confirmed her suspicions. 'There was one of Nelson's Column zooming in towards some girl's groin area. There was one by the fountain of a lady sitting there in a black skirt. Had she uncrossed her legs it would have been a very clear view of up her skirt. It zoomed right in very close to where her legs were crossed. She also noted that on an occasion the screen was blocked by a Coke can he was holding, as if he was attempting to conceal his camera lens from passers-by. And on the final video was of the women he first recorded on the steps - but the officer was shocked to find he had also zoomed in on her own legs. She said: 'The same film moved on, the phone had gone round to the left filming myself and my legs sitting on the steps behind. I was quite pleased that my jumper and bag were between my legs as I was wearing a short skirt. 'I told him, "That's me" and I think he said, "I'm sorry, it is the first time."' Darren Preston counsel for the GMC said: 'This is a disturbing incident which was protracted and persistent. Four separate videos were viewed by her, different women filmed over the course of that day. Zooming in on the groin area of women who were in that square. There was particular efforts for the doctor to do so surreptitiously and secretly. The behaviour was extremely serious and disturbing criminal conduct. He said doctors were to act with integrity and act within the law. It was criminal, disturbing and fundamentally outside the behaviour expected of a doctor in every form of practice. There is no evidence of any positive change in the doctor since August last year. Dr Iddamalgoda was not at the misconduct hearing which continues.