The former boyfriend and feng shui master to the late Hong Kong billionairess Nina Wang has been charged with forgery.
The charge relates to a 2006 will that Tony Chan claimed entitled him to Mrs Wang's multi-billion dollar fortune.
At a probate ruling early last year, the judge ruled in favour of a different will from 2002, and said that Mr Chan's was a fake.
The case has captivated the Hong Kong media and public.
Mrs Wang died in 2007, leaving an estimated $12bn (£7.4bn) fortune.
Tony Chan has always insisted that the Chinachem businesswoman left him her fortune.
But there was another will, from 2002, leaving her money to the Chinachem Charitable Foundation, run by Mrs Wang's family members.
Mr Chan was arrested by the Commercial Crime Bureau the day after the probate ruling in February last year, but no charges were laid until now.
Mr Chan is accused of forgery and using a false instrument, following what the police said was an extensive investigation.
The married Mr Chan, who was 20 years younger than Mrs Wang, claims to have been her boyfriend after she was left a widow when her tycoon husband Teddy Wang was kidnapped and never found.
Mrs Wang was a colourful personality, known for wearing bunches and miniskirts well into her 60s.