The ACT Director of Public Prosecutions has warned resourcing of the office has reached "a critical level" in a scathing annual report.

The report's author, Jon White SC, drew particular attention to the relative increase of funding and resourcing for other areas of the judicial system such as police numbers.

"The growing ACT population is mirrored in an increase in serious offences in the Territory," Mr White wrote in his overview.

"The Government has responded by increasing the number of beds at the prison, by appointing a fifth resident judge in the ACT Supreme court, and by increasing the resources available to police.

"However our pleas for increased resources have gone unanswered."

Funding for the DPP currently exists within the budget for the Justice and Community Services Directorate, but Mr White advocated for the two to be financially independent.

"Unfortunately, the directorate has been singularly unsuccessful in representing the interests of the office in budgetary discussions and this had led to the current resourcing crisis," Mr White wrote.

"As I have consistently pointed out, complete independence for the office will only be gained when the office is directly appropriated."

Issues go further than funding

Mr White also wrote that demands on the DPP were not purely quantitative, with significant increases in the number of complex cases needing prosecution.

"The need for a structure to accommodate such a volume of serious crime becomes more acute," he wrote.

Mr White highlighted the need for Senior Crown Prosecutors below the executive positions of Director, Deputy Director and Assistant Director to prosecute cases including murder and serious financial fraud.

But he admitted doing so within the department's current resources was impossible.

"How to create such a structure is a challenge for the office," he wrote.

In an interview, Mr White said unlike other organisations, the DPP was limited when it came to cost-cutting measures.

"We're not really in a position to not prosecute matters, we're totally a downstream agency," he said.

"We take in matters that come to us ... and prosecute as best we can everything that's given to us. "

The ACT Government has been contacted for comment.