Human rights campaigners have presented police with a 'dossier ' of new evidence against a Bahraini prince accused of torture after he revealed on social media he was staying in London . Prince Nasser bin Hamad al-Khalifa , 27 , accidentally let slip he was back in Britain on Thursday when he posted a video of himself running in Hyde Park . The prince posted the video on Instagram alongside a squadron of the Life Guards of the Household Cavalry with the caption : 'That 's how it feels and sounds when you run in Hyde Park , London . ' Prince Nasser bin Hamad al-Khalifa posted this video of himself running in Hyde Park on Thursday . The video was captioned : 'That 's how it feels and sounds when you run in Hyde Park , London ' He now faces fresh calls for his arrest following a High Court ruling last year which stripped him of diplomatic immunity . A Bahraini refugee in Britain , referred to only as FF , alleged Prince Nasser was involved in the torture of detained prisoners during 2011 Arab Spring protests . Today The Independent reported human rights lawyers acting for FF have delivered a 'dossier ' of new evidence to Scotland Yard in a bid to have him charged following the revelation he is visiting the capital . Previous allegations which gave rise to the diplomatic immunity row did not stick . No charges were brought against him due to a lack of evidence and both he and the government of Bahrain strongly deny the accusations . The case arose after FF , who has been granted asylum in the UK , claims he was badly beaten - though not by the prince directly - and given a prison sentence after taking part in protests in the Gulf state in February 2011 which left dozens dead . Following the decision to revoke his diplomatic immunity in October last year , a spokeswoman for the Government of Bahrain said : 'As the British DPP has today affirmed , an arrest would have been improper given the absence of evidence of the conduct alleged . 'As Bahrain has never sought anonymity or sovereign immunity from the English Courts for anyone in respect of this case , it expresses no view on the DPP 's statement that immunity was inappropriate . 'This has been an ill-targeted , politically-motivated and opportunistic attempt to misuse the British legal system . The Government of Bahrain again categorically denies the allegations against Sheikh Nasser . ' Lawyers for Prince Nasser said : 'The allegations are entirely false and categorically denied by Prince Nasser . The presentation of the `` dossier '' to the police appears to be a politically-motivated and opportunistic attempt to use the British justice system once again to ventilate damaging allegations about Prince Nasser . 'FF stated last October that he intended to submit further evidence to the police , but some five months passed and nothing had been forthcoming until today . The timing of the actions of the campaigners suggests this is nothing more than a publicity stunt designed to coincide with Prince Nasser 's visit to the UK and FF 's lawyers ' threatening earlier this week to bring judicial review proceedings in respect of the UK-Bahrain naval agreement . 'The police have previously declined to investigate Prince Nasser on the basis of the insufficiency of the evidence against him . The submission of this new dossier at this time coincides with other attempts by opposition activists to exploit the British justice system to influence UK-Bahraini relations . ' Prince Nasser , born in May 1987 , is the fourth son of the King of Bahrain Hamad bin Isa Al Khalifa and his second wife , Sheia bint Hasan Al-Khrayyesh Al-Ajmi of Kuwait . He was educated in Bahrain at the Ibn Khuldoon National School , before commissioning from Royal Sandhurst Military Academy in August 2006 , two terms after Prince William . During his Sovereign 's Parade , Prince Nasser was presented with the King Hussein Medal , awarded to the overseas officer cadet considered to be the most improved recruit . He currently serves as commander of Bahrain 's Royal Guard and as president of the Bahrain Olympic Committee . Bahraini anti-government protesters wait at barriers they had set up for Saudi forces called in to prop up the monarchy against demonstrations in 2011 . The barrier in the foreground reads : 'Down with Hamad ' Inspired by the Arab Spring , protesters in Bahrain had initially wanted to achieve greater political freedom and equality for the Shia muslims who form the majority of the population , as opposed to the ruling Sunni royal family . However , following an attack on protesters who had gathered at the Pearl Roundabout in Manama on February 17 , 2011 , demonstrators began to call for an end to Hamad bin Isa Al Khalifa 's rule . The following month 1,000 troops from Saudi Arabia and 500 troops from UAE arrived in Bahrain to quell the protests , and on March 15 the king of Bahrain declared martial law and a three-month state of emergency . A man identified only as FF was later granted refugee status in the UK , and from there , set about trying to bring charges against Prince Nasser . Claiming the prince should be held responsible for his beating and imprisonment during the turmoil , his accusations were stopped when the prince was granted diplomatic immunity . In October last year , this was overturned , creating the possibility - albeit an unlikely one - that he could be charged when travelling outside Bahrain . However , these charges collapsed due to a lack of evidence .
Bahrain 's Prince Nasser bin Hamad al-Khalifa let slip he is visiting London . The fourth son of the King , he is accused of torture in his home country . This week he posted a video of himself running in Hyde Park on Instagram . Campaigners have now handed over a 'dossier ' of new evidence to police . They are acting on behalf of a Bahrain refugee identified only as the Bahrain Government . Prince Nasser and FF strongly deny the accusations .