Could bring her down. It looks simply like a massive transfer of money into a company that is run by a close, personal friend and associate of Isabel Dos Santos. She is afrikas Richest Woman. Isabel dos santos has billions. A yacht. And celebrity friends. But she calls england her home. These are two of her london properties. They are worth millions. Isabel dos santos says she has earned everything she has got. I think angola is merit driven and whatever i have achieved it has been because of merit. But it is not on merit. Herfortune is down to her dad. President Eduardo Dos Santos ruled angola for 38 years. The country has got vast, natural resources, but much of its wealth has been lost to corruption. A lot of the people around jose Eduardo Dos Santos have become immensely rich family members, generals, senior politicians, people who run the oil industry. They have all used those positions for massive self enrichment at the cost of the ordinary angolans. Isabel dos santos used land, oil, telecoms, even diamonds, to build her fortune. She is now under investigation in angola and we are going to show you why. More than 700,000 documents from her Business Empire have been leaked. Most were obtained by the platform to protect whistle blowers in africa and shared with the International Consortium of investigativejournalists. The documents expose how Isabel Dos Santos made herfortune and who helped her. It is like a guidebook on how to exploit a country. Land can make you very rich, especially if your father is the president. We found evidence that Isabel Dos Santos was handed multi Million Dollar deals by her dad. This is the outskirts of the angolan capital luanda. Disease and death stalk these pathways. The people here live next to an open sewers. This is very upsetting, it is revolting. It smells and the water is filthy and it is right next door to where these people were forced to live. And, as the tide rises, the water just moves into where people are living their lives. Imagine living here. Translation when we are eating the flies come out of the sewer and come in here for the food. We have outbreaks of diarrhoea, vomiting and other diseases like malaria. We live very poorly here. But this community of about 500 families hasnt always lived like this. They had to move after their land was marked for major development. These people used to live in a fishing village on that land over there, but they were removed by the police and they had to build a new home here. 0ur documents show Isabel Dos Santos company got involved in the Development Plans in 2012. Her Construction Companies stood to make hundreds of millions of dollars. Her plan was approved by herfather, the president. Two weeks later the families were forcibly evicted from their homes. Translation if the government, or someone in good faith, who saw how we are living here, we would be very grateful, because our living here is not good. It is not at all acceptable. Isabel dos santos lawyers say no monies were ever paid because the project was cancelled and there were never any evictions because all works were to be done in 100 reclaimed land from the sea. But we have been told her companies were paid millions. These plans clearly show the development would have covered the island where the evicted families used to live. And they are not the only people who have lost their homes in luanda. This is where Isabel Dos Santos lived when she was a child, in the president ial compound, surrounded by party loyalists, her dad in charge of the country. Then she grew up and came up with a plan to redevelop this area and make herself a lot of money. We have discovered her Company Bought a square kilometre of that prime, beachfront land from the government. It was made possible after a president ial decree from her dad. The land was valued at almost 96 million. But our documents show her company only paid 5 of that in return for investing the rest in the project. I think that she got the opportunity to become rich and take the opportunity that her father, by decree, would transfer state monies to her. The architects named this area millionaires alley. All of these plots were to be luxury villas and the people who lived here were all cleared away. We have tracked down some of the people who were moved out to make way for Isabel Dos Santos development. They have been shifted to an isolated Housing Development 13 miles from luanda. Teresa vissapa lost her business but hopes Isabel Dos Santos still might help. Translation i only ask god to make her think a little more about our situation. Maybe she doesnt even know, but we are suffering. But angola is not a free country. Filming and asking questions attracts the militias. A guy from the army turned up who was not happy that we were filming and he asked us to leave. The residents that we went there to meet were very unhappy that we were being forced out, they said it was like living in a prison, they were not able to express themselves. But the guy from the army was very forceful and started to make threats. We had no choice, we had to go. Angola has vast reserves of oil. But some of that wealth has ended up with the president s daughter and we will show you how. Sonangol is the state oil company, but Isabel Dos Santos has used it to make a personalfortune. Sonangol is the lifeline of angola. Over 90 of angolas exports come from oil, sonangol. So it is essentially the heart that pumps blood to our vessels. Rafael marquez is a campaigning journalist who has been exposing corruption in angola for decades. Essentially the way Isabel Dos Santos built her fortune was by using herfathers position. And by using also sonangol as her cash cow and private bank to finance her activities. 0ne extraordinary scheme made her hundreds of millions. Sonangol gave her a very good deal and a very valuable asset. Angolas state oil company agreed to sell 40 of its stake in a lucrative Portuguese EnergyCompany Called galp. The price for the galp share was 75 Million Euros. But, like the land, that is not what Isabel Dos Santos handed over. 0ur documents have never been published before and they show she only had to pay 15 of the price upfront. The remaining 85 , or 63 Million Euros, was deferred and turned into a loan from the state oil company. The investment was incredibly profitable and her bargain buy is now worth three quarters of a billion euros. The idea that the daughter of the president of angola should benefit from the profits of the state oil company is clearly distasteful. Did she get access to buying that company because of who she was . That is absolutely the definition of corruption. She was put in a favoured position because she was the daughter of the president. Isabel dos santos did not respond to panoramas interview request, but did agree to talk to other media outlets, including colleagues from bbc news. She says she initiated the energy deal, which made sonangol money as well. There is absolutely no wrongdoing in any of these investments. These investments that in history have generated the most benefit for the national oil company, and all the contracts that were drafted, are perfectly legal contracts. There is no wrongdoing. It might sound plausible, but Isabel Dos Santos was benefiting from state funds. And it gets worse. Years later, her father issued a president ial decree that put her in charge of the struggling state oil company. Because of her dad, she was now in control of her own debt and angolas oil wealth. It is a blatant and brazen move, using his almost total political power to benefit himself and his family. It wasnt my father, it was the government, but we can go through that, i worked for them as a consultant, and after i finished my consultancy work, they invited me to consider the position to become sonangols chairperson. But she got the job and made a fortune thanks to her dad. Diamonds are angolas second great resource, and thanks to herfamily connections, Isabel Dos Santos got a stake. We have found the family had control of both the supply and the sale of diamonds. The president gave her husband the right to buy raw diamonds. The new angolan government says they were sold on the cheap. Weve been told the state may have lost up to nearly 1 billion. Looking at the model of what they did in the diamond industry makes me incredibly angry, and it seemed to me that the dos santos family decided not only because of the number of diamonds angola finds every year, but also because of the opacity of the global trade in diamonds, that this is somewhere where they could make unbelievably large profits. In 2012, the angolan state also paid for the family to buy a stake in the luxury swiss jeweller de grisogono. It was supposed to be a 50 50 deal between isabel dos sa ntoss husband, sindika dokolo, and the state of angola. Not really. 18 months later, the state diamond company, sodiam, had put in 79 million. His company had only put in four, and he was awarded a 5 million euro success fee for brokering the deal. Translation from the time that sodiam signed up, the state hasnt made a single dollar. Sindika dokolo did put some money in later. His lawyers say it was 115 million and that the project was his idea. They say he paid above market rate for the raw diamonds. Isabel dos santos says it is nothing to do with her. I am not a shareholder in de grisogono, so i am not able to answer questions on that because i am not a shareholder. You and your company gotta have. I didnt get any half of anything but once again the documents suggest she was involved. His bank account application lists her as an economic beneficiary, and this one shows she had a stake in de grisogono. Translation in the end, when we finished, sodiam would have lost more than 200 million. And some of that angolan state money was used to pay for de grisogonos lavish parties. Lets imagine that the amount of money that isabel has now was invested publicly in schools, hospitals and health centres. Probably the opportunities of millions of angolans would be different. Use a mobile phone in angola, and youre probably adding to isabel dos sa ntoss fortune. Angolas main Telecoms Company is called unitel, they have at least 10 million customers. Unitel is a private company granted its telecoms license by Isabel Dos Santoss father. She bought a 25 stake from a high ranking government official. She has already had 1 billion in dividends. But the documents show she got even more cash from loans through unitel. They went to a new company she set up called Unitel International holdings, but the name was misleading, because Isabel Dos Santos owned it outright. That is another trick so people thought it was unitel angola, but in fact it was Unitel International, and that company only belonged to her. It looks like corruption. Isabel dos santoss lawyers say the loan is protected unitel from currency fluctuations. It is not corruption, that is. That is not true, this loan had both directors and shareholders approval, and it will generate and has generated a benefit for unitel, and not all losses. But our documents reveal she signed off on the loans as both borrower and lender. She lent 350 Million Euros to herself. It is a blatant conflict of interest. Now, most of the Companies Involved in the dodgy deals were overseen by britains biggest accountancy firm, pwc, and they failed to stop them. Pwcs involvement gave legitimacy to the corrupt billionaire. Pwc, if not facilitating the corruption, are providing a veneer of respectability that makes what is happening acceptable, or more acceptable than it might otherwise be. After we put our allegations to them, pwc announced a thorough inquiry. It has taken action to terminate any ongoing work for entities controlled by members of the dos santos family. It took them long enough. Over 20 years, pwc has earned millions of dollars in fees from the familys empire. Right now, allegations of corruption surround Isabel Dos Santos. Everything started to change for her when her father retired as president in 2017. She was sacked from the state oil company, sonangol, within weeks. But the documents show, as she left, 58 million left as well. It was all signed off through sonangols office here in central london. In her last days in charge of sonangol, Isabel Dos Santos approved millions of dollars of suspicious payments, the cash all went to a company in dubai called matter business solutions. They had been hired to restructure sonangol. Isabel dos santos has denied being involved with matter. But we have discovered it was run by her Business Manager and owned by a friend. They were sent a lot of cash. Isabel dos santos was sacked by sonangol on the 15th of november 2017. We understand that, later that day, matter sent in more than 50 invoices and she signed them off. It looks like Isabel Dos Santos approved these Bank Transfers after she was sacked. The day after she was fired, sonangol londons bank account was cleared of cash, 58 million was sent to the company in dubai owned by Isabel Dos Santoss friend. Matter said it was hired for its expertise and the invoiced work was carried out. Isabel dos santos denies signing off payments after she was sacked. These payments were paid, and the consultants that received these monies are very well known, established firms, these are transparent. We have received copies of these invoices. Here, for instance, 472,000 euros, and there is no explanation for what these expenses are for. I will not be familiar with. You signed off on them. These services were rendered, and all the invoices are connected to services rendered. In this particular transaction in dubai, from a company of which she was chair at the time, it looks like a massive transfer of money into a company that is run by a close personal friend and associate of Isabel Dos Santoss. Isabel dos santoss lawyers say all our allegations are entirely false and she rejects any allegation of wrongdoing. They say it is a politically motivated witch hunt by the angolan government. In angola, there is a criminal investigation, and her assets have been frozen. Isabel dos santos is at last having to explain her wealth. This is a classic example of corruption, its a classic example of somebody being able to use that relationship to benefit themselves. Now her father has gone, the angolan people want answers. The state was at the disposal of Isabel Dos Santos, and she ruled supreme in grabbing whatever she wanted in this country. The documents are clear. Isabel dos santos is the corrupt billionaire, and africas Richest Woman made her fortune exploiting her homeland. This is bbc news. Welcome if youre watching here in the uk, on pbs in america, or around the globe. Im mike embley. 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