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Showing posts with label forensic. Show all posts
Showing posts with label forensic. Show all posts

Tuesday 30 May 2023

How to treat the Fraud Epidemic!

Kelly Richmond Pope in The Economist

It marks a spectacular fall from grace for a one-time Silicon Valley star. This week a court in California ruled that, Hail Mary appeals notwithstanding, Elizabeth Holmes must report to prison on May 30th to begin serving an 11-year sentence for fraud. Theranos, the startup Ms Holmes had founded in 2003, was worth $9bn at its peak but crashed after its much-vaunted blood-testing technology was shown not to work, and she ended up in the dock for deceiving investors.

Theranos is one of a long list of financial scandals that have made headlines in recent years. Also among these are the frauds at Wirecard, a German payments processor, and Abraaj, a Dubai-based private-equity firm, various crypto-heists, and a bonanza of misappropriation of government handouts to businesses during the covid-19 pandemic. So many frauds are there, and so big are the biggest, that pilfering a billion dollars does not guarantee a global headline. Chances are you haven’t heard of Outcome Health, a Chicago-based health-tech firm whose former ceo and president were recently convicted of defrauding clients, lenders and investors of roughly that amount of money.

Beneath the blockbuster frauds in the billions of dollars is an alarmingly long tail of smaller financial scams. Taken together, these add up to a huge global problem. Research by Crowe, a financial-advisory firm, and the University of Portsmouth, in England, suggests that fraud costs businesses and individuals across the world more than $5trn each year. That is nearly 60% of what the world spends annually on health care.

The drivers of fraud are many and complex. Sometimes it is down to pure greed. Sometimes it begins with a relatively innocuous attempt to paper over a small financial crack but spirals when that initial effort fails; some believe that’s how it started with Bernie Madoff’s giant Ponzi scheme. Market pressure and a desire to exceed analysts’ expectations can also play a part: after the global financial crisis of 2007-09, ge was fined $50m for artificially smoothing its profits to keep investors sweet. Accounting ruses like this, which fall in a grey area, are more common than outright fraud. Among tech startups there is even an established term for manipulating the numbers to buy you time to navigate the rocky road to financial respectability: “fake it till you make it.”

Fraud is an all-weather pursuit. Economic booms help fraudsters conceal creative accounting, such as exaggerated revenues. Recessions expose some of this wrongdoing, but they also spawn fresh shenanigans. As funding dries up, some owners and managers cook the books to stay in business. When survival is at stake, the line between what is acceptable and unacceptable when disclosing information or booking sales can become blurred.

World events can stoke fraud, too. At the height of the pandemic, an estimated $80bn of American taxpayer money handed out under the Paycheck Protection Programme, set up to assist struggling businesses, was stolen by fraudsters. The covid-induced increase in remote working has created new opportunities for miscreants. The 2022 kpmg Fraud Outlook concludes that the surge in working from home has reduced businesses’ ability to monitor employees’ behaviour. Geopolitics affects fraud, too. nato countries experienced four times as many email-phishing attacks from Russia in 2022 as they did in 2020. Cybercrimes such as ransomware attacks have already transferred a staggering amount of wealth to illicit actors. The costs to businesses range from the theft of data, intellectual property and money to post-attack disruption, lost productivity and systems upgrades.

It is panglossian to think fraud can be eliminated, but more can be done to reduce it. Corporate boards and investors need to ask more questions. Investors are often too quick to take comfort from the presence of big names on the list of owners and directors. Some were clearly wowed by Theranos’s star-studded board, whose members included two former us secretaries of state and the ex-boss of Wells Fargo, a big bank.

Regulators need to be more sceptical, too. America’s Securities and Exchange Commission brushed aside a detailed and devastating analysis of Madoff’s business provided by a concerned fund manager, Harry Markopolos. Germany’s financial-markets regulator was similarly dismissive of the short-sellers and journalists who called out Wirecard.

The most effective change would be to do more to encourage whistleblowers. Falsified financial statements must start with someone who notices fraudulent acts. When fraud happens, many people ask “Where were the auditors?”. But the question should be “Where were the whistleblowers?”

As important as sceptical investors, regulators and journalists can be, much fraud would be undetectable without someone on the inside willing to spill the beans. Research shows that more than 40% of frauds are discovered by a whistleblower. The Wirecard scandal came to light largely because of the bravery of Pav Gill, one of the company’s lawyers, who went to the press with his concerns. The Theranos fraud was brought to the attention of the authorities and the Wall Street Journal by whistleblowing employees (one of whom was the grandson of a former political bigwig on the board).

Too often, companies seek to silence whistleblowers, or portray them as mad, bad or both: Wirecard, for instance, fought back ferociously against Mr Gill’s allegations and the journalists who investigated them. Organisations need to create safe spaces where employees can voice their concerns about wrongdoing. Internal reporting channels need to be robust, and employees educated on how to use them. Creating an environment where whistleblowers are celebrated, not vilified, is critical. Companies should worry more about anyone who can circumvent the controls, such as senior leaders or star employees, than about those inclined to raise concerns.

Governments, too, could do more. Protections for whistleblowers have been recognised as part of international law since 2003 when the United Nations adopted the Convention Against Corruption, and this has since been ratified by 137 countries. In reality, legal protections are patchy. They are strongest in America, which offers bounties to whistleblowers who provide information that leads to fines or imprisonment. In much of Europe, and elsewhere, the law is still too soft on those who muzzle or retaliate against alarm-ringers.

Fraud can be reduced. But first we must better understand who commits it, educate people on how to report it, and then ensure that policies protect those who choose to come forward. Until we do, financial crime will remain a multi-trillion-dollar scourge.

Thursday 14 May 2015

The troubling flaws in forensic science

by Linda Geddes in BBC Future

“It has long been an axiom of mine that the little things are infinitely the most important.” So said the fictional detective, Sherlock Holmes. Armed with his finely honed skills of backwards reasoning, his trademark ability to solve unsolvable crimes often hinged on his revealing evidence too small to be noticed.
Holmes was an inspiration for the very founders of modern day forensic science. As the decades passed and the tools in their armoury grew, so too did the sheen of invincibility that surrounded their discipline. But there was a crucial chink in their methods that had been overlooked: subjectivity.
While the likes of Holmes’s successors in detective fiction may lead us to believe that forensic evidence is based on precise deduction, all too often it relies on a scientist’s personal opinion, rather than hard fact.
Science on trial
Consider the following case. In December 2009, Donald Gates walked out of his Arizona prison with $75 and a bus ticket to Ohio. After serving 28 years for a rape and murder he didn’t commit, he was a free man. Now the spotlight began to shift to the forensic technique that put him there: microscopic hair analysis.
Human hair is one of the most common types of evidence found at crime scenes. During the 80s and 90s, forensic analysts in the US and elsewhere often looked to the physical differences between hairs to determine whether those found at a crime scene matched hairs from a suspect – like Donald Gates.
When he stood trial in 1982, an FBI analyst called Michael Malone testified that hairs found on the body of the murder victim – a Georgetown University student called Catherine Schilling – were consistent with Donald Gates’ hairs. He added that the probability they came from anyone else was one in 10,000.
“That’s very compelling evidence, particularly when it comes from a witness wearing a white laboratory coat,” says Peter Neufeld, co-founder of the Innocence Project, a New York-based non-profit organisation that uses DNA evidence to overturn wrongful convictions.
DNA testing evidence on a pair of trousers
The FBI is now reviewing several thousand cases as DNA testing sheds new light on the truth (Credit: Getty Images)
However, hair analysis is not purely objective; I might think two hairs look identical, but you might disagree. Even if we agree that two hairs match, no-one has ever figured out how many other hairs might be similarly indistinguishable from one another. “When a person says that the probability is one-in-10,000, that’s simply a made-up number,” says Neufeld. “There’s no data to support it.”
Donald Gates was finally exonerated when DNA testing revealed that the hairs didn’t belong to him after all. Two similar exonerations followed soon afterwards. As a result of these cases, the FBI is now reviewing several thousand cases in which its scientists may have offered similarly misleading testimony. Last month, it announced that of the 268 cases it has reviewed so far that went to trial, 96% them involved scientifically invalid testimony or other errors by FBI agents. Among those convicted, 33 received death sentences, and nine have already been executed.
The FBI’s review won’t necessarily overturn the convictions, but it does mean that they need to be reconsidered carefully. Lawyers scrutinising these cases must work out what other evidence was presented in court; if they hinged on flawed hair testimony, retrials and exonerations may follow. In cases where the original physical evidence still exists, that DNA testing may shed new light on the truth.
Damning report
Even trusted lines of evidence, such as fingerprint analysis, are not water-tight. Research has shown that the same fingerprint expert can reach a different conclusion about the same fingerprints depending on the context they’re given about a case.
Based in part on these findings, in 2009 the National Academy of Sciences in the US published a report on the state of forensic science. Commissioned in response to a string of laboratory scandals and miscarriages of justice, its conclusions were damning. “Testimony based on faulty forensic science analyses may have contributed to the wrongful conviction of innocent people,” it said. “In a number of disciplines, forensic science professionals have yet to establish either the validity of their approach or the accuracy of their conclusions.”
The report was a wake-up call, not just for forensic scientists in the US, but around the world. “What it exposed were significant scientific deficiencies across many of the different methods that we use, both to examine and interpret different types of evidence,” says Nic Daeid, a professor of forensic science at the University of Dundee in Scotland. 
Of all lines of forensic evidence, DNA analysis was considered to be the most objective. Resting on complex chemical analysis, it seems stringently scientific – a gold-standard for how forensic science should be done. Yet perhaps juries should not be too quick to trust the DNA analyses they see in court.
Fingerprints on a sheet of paper
Even trusted lines of evidence, such as fingerprint analysis, are not water-tight (Credit: Thinkstock)
In 2010, while working as a reporter for New Scientist magazine, I teamed up with Itiel Dror from University College London, and Greg Hampikian from Boise State University in Idaho, to put this idea of DNA’s objectivity to the test.
We took DNA evidence from a real-life case – a gang-rape in Georgia, US – and presented it to 17 experienced analysts working in the same accredited government lab in the US.
In the original case, two analysts from the Georgia Bureau of Investigation concluded that the man who was ultimately convicted of the crime, Kerry Robinson, "could not be excluded" from the crime scene sample, based on his DNA profile. But when the evidence was shown to our 17 analysts, they reached very different conclusions; just one analyst agreed that Robinson "cannot be excluded". Four analysts said the evidence was inconclusive and 12 said he could be excluded.
Yet just because forensic science is subjective, this doesn’t mean it should be disregarded; it can still yield vital clues that can help to catch and convict murderers, rapists, and other criminals. “Subjectivity isn’t a bad word,” says Dror. “It doesn’t mean that the evidence isn’t reliable, but it is open to bias and contextual influences.”
Blind judgement
What’s needed are additional safeguards to shield forensic examiners against irrelevant information that might skew their judgement. A first step is to ensure they aren’t given irrelevant information, such as knowing that witnesses have placed the suspect at the crime scene, or that he has previous convictions for similar crimes. Another safeguard is to reveal the relevant information sequentially – and only when it is needed. “We need to give them the information that they need to do their job when they need it, but not extra information that’s irrelevant to what they’re doing and which could influence their perception and judgement,” says Dror.
In the US at least, this is starting to happen: a national commission on forensic science has been established, with the goal of strengthening the field – and this includes looking at human factors like cognitive bias. But similar strategies are needed elsewhere if forensic science is to rebuild its tattered reputation.
When it comes to deduction and proof, there is still much we can learn from Arthur Conan Doyle’s hero. As Sherlock Holmes also once said: "Eliminate all other factors, and the one which remains must be the truth."