Dave possesses a broad range of experience in legal, investigation and commercial sectors in both Malaysia and New Zealand. 

He has extensive experience in preparing for trials of civil and criminal matters and briefing witnesses. He has an in-depth knowledge of administrative procedures, rules of evidence and trial practices in New Zealand and Malaysia. 

In 1991, Dave was appointed as a First Class Magistrate in Malaysia. He was involved in hearing all Civil and Criminal cases, which are within the jurisdictions of the Magistrates court. 

From 2001 through March 2008, he was the Managing Partner in Ananth & Partners Solicitors, where he specialized in cases involving Commercial Crime such as forgery, cheating and fraud, and other offences under the Penal Code, Road Transport Act, Environmental Act, Customs and Taxation.

From 2008 through 2013, he was a Solicitor/Prosecutor at the Inland Revenue Department, Auckland, New Zealand. He prosecuted case on GST Fraud and Tax Evasion. He was extensively involved in the preparation of evidential sufficiency for cases under the Crimes Act and Tax Administration Act; preparation of charges/ information; advising internal clients on Revenue law, court appearances in the local District Courts and the High Court; sentencing submissions and arguing cases primarily within the Criminal/ Civil Jurisdictions in Court; advising investigators regarding investigations and evidence/ intelligence gathering. 

He was also an Adjudicator with IRD, forming technical opinions on GST and Taxation. 

In 2013, he became a Barrister Sole specialising in Taxation based in Auckland, New Zealand. 

From 2014 - 2017, he was a Director at EY Malaysia, managing the technical aspects of GST, in Malaysia. 

He is currently practising in Auckland.