Putting on Tefillin that was found without checking its Kashrus - v4 #19 by R' Aaron Cohen

In the aftermath of the Holocaust, survivors were faced with a shortage of Tefillin. Some pairs of Tefillin were found in the possession of non-Jews, apparently taken from homes and Shuls as the Jewish communities were ravaged. Given the extenuating circumstances, could these Tefillin be used without checking their Kashrus?

Reference Material (pdf)