Justice Minister Judith Collins says the Government will accept almost all the recommendations in the Law Commission's review of the Evidence Act.
The commission made 33 recommendations in February this year, most of which it says were minor changes.
Ms Collins says the changes will give some protection to complainants in sexual cases.
"They are particularly around giving evidence or giving notice to a complainant that their previous sexual history will be brought up. Also allowing complainants under 18 years old to have a support person with them when they're giving their evidence."
The minister says a draft paper has gone to the Cabinet and expects a final paper to be ready in about a fortnight.