In an article about cloisonne the reporter discussed some of the methods for faking Ming pieces and mentioned the reluctance of Palace Museum experts to render opinions on authenticity thanks to a recent scandal involving a museum expert, bribery, and a fake jade suit.

Following the breadcrumbs, first there was this entertaining Asian Art Forum discussion of a Shang jade bear that sold for $8,000,000

http://www.asianart.com/phpforum/index.php?method=reply&RId=59403&gId=1&MSubject=8+Million+Dollar+Han+Bear&PID=59403&PHPSESSID=vfoq1pr10do554gb12brrm9jj3

The Certificate of Authenticity reports, which are illuminating as to the depth of detail experts examine:
http://www.eliteauction.com/stoetzer/index2.html
http://www.eliteauction.com/stoetzer/

And finally, some acerbic reports, such as this delightful piece that pits the peasants and pirates against the "experts."

http://webcache.googleusercontent.com/search?q=cache:ZyhgsHNNuf8J:www.theworldofchinese.com/2014/08/the-antiques-hustle/+&cd=5&hl=en&ct=clnk&gl=us

And some tsk-tsking from China Daily about that jade suit scandal:
http://www.chinadaily.com.cn/opinion/2011-09/13/content_13670774.htm