Some of the important cases are:

Lam Tin Ming case: Conspiracy to Pervert the Course of Public Justice, November 1996, Court Case No. DCCC 129/96 
Mark 6 forgery case, Court Case No. ESCC 207/2000
Counterfeit credit card factories in TM and TW, CCB CCR 96 361 & 96 445, Court Case No. HCC 245/97
Vietnamese Refugee Card clandestine factory case, Wanchai, 1997, Police Ref. Wch RN 97032985
Multi-robbery case, MK/CCR 95554, Court Case No. HCC 176/96
A case of questioned handwriting and signature from the US Government submitted through the Interpol, Ref. ICPO-RB-USA (CON) 97122
Sa Sa Cosmetic tycoon signature case, Court Case No. ESCC 3888/2003
Choy Ching Ming case, HCAP13/97
Wang Teh Huei/Nina Wang case, HCAP8/1999
Case of Eric Tang Yiu-hong and others, HCCC No. 100 of 2001
Tang Kin Sun case, Court Case No. HCAP No. 008 of 1996
Ming John Fook case, High Court Action No. 18407 of 1999-J F Ming Inc., Court Case No. HCA 18407/1999
High Court Action No. 2279 of 2002 before Deputy High Court Judge Carlson in Court
Document alteration case: HCA No. 4414 of 2001- First Laser Limited vs Fujian Enterprises (Holdings) Co. Ltd.
Signature identification case: HCA 15296 & 19488 of 1998- Billion Zone Co. Ltd. vs The Incorporated Owners of May Moon House
ESCC 4219/2005
HCB 3633/2005, HCA 1389/2005 & HCA 921/2005
HCA 216/2005 & HCA 217/2004
HCA 1736/2005
HCA 15296 & 19488 of 1998
Signature identification case: ESC993/2006
Document alteration: DCCJ No. 3883/2004-Ou Kei Hong vs China Sports Equipment Trading (HK) Co. Ltd.
A case of Bond Refund Balance Certificate: DCC No. 347 of 2005
High Court Action No. 900 of 2006 before Deputy High Court Judge To in Court- KING’S GLORY EDUCATIONAL CENTRE vs KARSON OTEN FAN KARNO
HKSAR v Wong Chung Kwong KTCC 6141/2008
HCCW 565/2006
HCA 2612/2005