After 77 old age , a squad of investigator   believes they have distinguish the person who betrayed Anne Frank ’s location to the Nazis , in the end leading to the destruction of her and most of her family .

In 1942 , the Frank family moved into a secret flat hidden inside her beginner ’s business enterprise in the German - occupied Netherlands . For two years they lived here , where Anne spell her famous diaries , which would be publish after her destruction . On the morning of August 4 , 1944 , Nazi police force showed up at the patronage and ascertain the household hidden in the secret annex . They were taken to the concentration camps Auschwitz , and for Anne and her sister , later , Bergen - Belsen , where they both died . Her Father-God was the only family line member to survive the camp .

Over the years , many names have been suggested as potential informant , who revealed the family ’s address : from   stockroom manager , Willem van Maaren , whom theFrank phratry did not commit , to Bep Voskuijl , who helped the syndicate while they hid , but may have inadvertently passed the info on to her babe Nelly , who was aNazi collaboratorbetween the eld of 19 and 23 .

Other proposals — let in by the Anne Frank House museum in Amsterdam in 2016   — are that   they were discovered by chance , or their location was reveal   when   Martin Brouwer and Pieter Daatzelaar , business partners of Anne ’s Church Father Otto , were caught for manage in rationing voucher . The two were the reference of ration coupons for the family , fit in to analysis of Anne Frank ’s journal .

The current team of detective , which includes a former FBI agent and a number of historians , conceive that   Arnold van den Bergh , a high-pitched - profile Judaic notary process in Amsterdam , was ultimately the person who revealed the Franks ' whereabouts . After six years of research , eliminating 11 other suspects , they name van den Bergh as the probable suspect base on how he was treated by the Nazis   — even being categorize as non - Jewish   — as well as an anon. banker’s bill station to Otto Frank after his family ’s death .

The squad , who will publish a volume on their findings , The Betrayal of Anne Frank : A Cold Case Investigation ,   observe that van hideout Bergh was a member of the   Judaic Council , which enforced Nazi policies in Judaic area . In 1943 , the council was disband , with most of its extremity beam to assiduousness cantonment . However , van hideout Bergh was give up to go along living in Amsterdam .

" Van hideaway Bergh was n’t behave , " Dutch journalist Pieter van Twisk , who was part of the fact-finding squad , toldCBS News .   " We conk out into the metropolis archive and found validation that actually he was ' Aryanized , ' so he lose his Judaic identity element during the warfare . That was quite a feat . You could n’t just do that . "

What caused him to betray the Franks ?

" When van hideout Bergh lost all his series of protections exempting him from having to go to the camps , he had to supply something valuable to the Nazis that he ’s had contact with to allow him and his married woman at that time stay safe , " former FBI agent Vince Pankoketold CBS 60 Minutes .

The team found a letter , itself discovered during a late probe , which was send to Otto Frank naming van hideout Bergh as the person who let out their address . Frank apparently didnot reveal the identityof the someone key as shop him and his family before his own last in 1980 . The squad speculated that he may have kept it enshroud in gild not to " stoke the fires " further of anti - semitism .

" We have to keep in mind that the fact that [ van den Bergh ] was Jewish just meant that he was placed into an untenable spatial relation by the Nazis to do something to save his life , " Pankoke said .

" There ’s no grounds to indicate that he knew who was hide at any of these addresses , "   he add of the addresses that seem to have been glide by on , agree to their investigations . " They were just destination that were provided where Jews were hump to have been in hiding . "

The Anne Frank House   museum says it is strike by the work that the team has carry out .

" The cold event team ’s probe has father important new selective information and a fascinating hypothesis that deserve further enquiry , " executive conductor of Anne Frank House ,   Ronald Leopold , said in astatement .