The state prosecutor said the police investigation had focused only on the child pornography aspect of the case, as "homosexual relations between consenting adults not involving the abuse of an authority relationship" was not a crime in Austria.
A member of the conservative Catholic organisation, Opus Dei, will report his findings directly to the Pope.
His appointment signals the end of an inquiry headed by the bishop in charge of the seminary, Kurt Krenn, according to the Archdiocese of Vienna.
Bishop Krenn has rejected calls for his resignation, having earlier said the images at the centre of scandal depicted a "schoolboy prank".
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http://news.bbc.co.uk/2/hi/europe/3910293.stmmore
Sex scandal draws intense interest in Austria
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