raaf and governor-general sir peter cosgrove in east timor has been arrested in the us on child pornography charges .
dr adam cobb was taken into custody on friday in portsmouth , new hampshire , for receipt and distribution of child pornography after allegedly uploading images of child pornography to the social networking site , tumblr .
if convicted he faces 20 years ' jail in the us , the raaf and mobile phones were seized from his home , while photos and videos of two females were also discovered on a storage device and a computer allegedly belonging to cobb .