Diverse practice in Canberra and Sydney including proceeds of crime litigation, criminal law (defence and prosecution), commercial disputes, administrative law (merits review), building cases, family law, workers compensation, and other areas.

Practice Mentor, Commercial Law, ANU Legal Workshop (Graduate Diploma of Legal Practice). The course involves introducing students to the main commercial business entities, focussing on the relative business, tax and other advantages of each.

Diverse practice in Canberra and Sydney including criminal law (defence and prosecution), commercial disputes, administrative law (merits review), building cases, family law, workers compensation, and other areas. Extensive knowledge of and experience in Commonwealth proceeds of crime law.

During this period Marcus had national responsibility for the proceeds of crime practice of the Commonwealth Director of Public Prosecutions, and provided advice and assistance to the Director on the CDPP's most complex and high-value cases.

Between 2003 and 2006 Marcus was a solicitor with the Canberra Office of the Commonwealth Director of Public Prosecutions, working in its Proceeds of Crime Branch. In this position Marcus was responsible for the conduct of a significant civil proceeds of crime litigation practice on behalf of the CDPP in the ACT and NSW. In this capacity Marcus appeared in courts in the ACT and NSW, and also regularly conducted compulsory examinations (akin to corporations or insolvency examinations) in the ACT, NSW and South Australia.

Between 1998 and 2002 Marcus was a prosecutor with the Commonwealth Director of Public Prosecutions, working in its Sydney and Darwin Offices. During this period Marcus worked on a wide range of criminal cases including fraud, drugs, people-smuggling, corporations, tax, bankruptcy, and illegal fishing matters. Marcus appeared regularly in courts at all levels in New South Wales and the Northern Territory, in defended hearings, jury trials, sentences and appeals. During this period Marcus also wrote case notes for the Northern Territory Law Reports.

Solicitor with the Office of the Australian Government Solicitor in Canberra, appearing regularly in the Administrative Appeals Tribunal in workers compensation and other matters. At this time Marcus managed a large administrative law litigation practice and provided advice on matters including: alleged sexual discrimination in the workplace; public service discipline matters; and actions for negligent misstatement.

In 1995 Marcus worked for a year at the ACT Supreme Court, initially as Research Assistant to His Honour Chief Justice Miles, and later as a Judge’s Associate to Acting Justice Carruthers during the trial of David Eastman for the murder of Assistant Commissioner of the Australian Federal Police Colin Winchester. Some of the many issues which arose during the trial included: principles relating to the granting of a stay of prosecution; the right of the accused to a fair trial and to legal representation; claims for public interest immunity; evidentiary rules relating to hearsay evidence and handwriting evidence; listening device evidence; identification evidence; ballistics evidence; character evidence; and circumstantial evidence.