AI in Law Firms: What Melbourne Legal Practices Need to Know

AI tools have gone from a distant technology trend to something Melbourne law firms are actively using — or actively wondering whether they should use. Staff are experimenting with ChatGPT for document drafting. Partners are looking at Microsoft Copilot for meeting summaries. Junior solicitors are using AI research tools to accelerate legal research.

This is happening whether or not a firm has an official position on it. The question for Melbourne legal practices is no longer whether AI will affect how legal work is done. It is whether to get ahead of it — with proper policies, the right tools, and adequate data protection — or to discover the problems after something goes wrong.

The Core Risk: Client Confidentiality

The fundamental concern with AI in legal practice is client confidentiality. When a solicitor inputs client information into an AI tool, they need to understand exactly what happens to that information.

With consumer AI tools like ChatGPT (free tier), Claude.ai, or Gemini, input data is used to improve the AI model by default. This means client details — matter descriptions, correspondence, financial information — entered into these tools may be stored, reviewed by human trainers, and potentially used to train future model versions. For a Melbourne law firm, this is a confidentiality breach. It is also potentially a Privacy Act breach if the information constitutes personal data.

Even with enterprise-tier AI products (ChatGPT Enterprise, Claude for Enterprise, Gemini for Google Workspace), the data handling obligations need to be reviewed against your legal obligations, not just accepted as “enterprise = safe.”

What the LIV Guidance Says

The Law Institute of Victoria has issued guidance on technology use in legal practice under the Legal Profession Uniform Law, emphasising that solicitors’ confidentiality duties extend to how technology tools handle client information. The LPUL’s competence requirements have been interpreted to include technology competence — understanding the tools you use and their implications for your professional obligations.

Specifically:

• Confidentiality: You cannot share client information with a third party without consent. AI service providers may qualify as a third party for this purpose.
• Competence: Using an AI tool for legal work without understanding its limitations is a competence risk, particularly if AI-generated output is relied upon without adequate review.
• Supervision: Partners retain responsibility for the work product of AI tools used by staff on their matters.

Microsoft Copilot for Microsoft 365 — The Safest Starting Point

For Melbourne law firms already operating on Microsoft 365, Microsoft Copilot for Microsoft 365 is the most defensible starting point for AI adoption, for a straightforward reason: it operates within your existing Microsoft 365 data boundary.

When you use Copilot within Microsoft 365, your prompts and data do not leave Microsoft’s data boundary for your tenant. Copilot accesses only data the user already has permission to access within your Microsoft 365 environment. Microsoft’s contractual commitments on data use align with the Australian Privacy Act requirements in a way that consumer AI tools do not.

Practical Copilot applications for Melbourne law firms:

• Meeting summaries: Copilot in Teams can summarise client meetings, extract action items, and produce follow-up notes — saving 15–20 minutes per meeting
• Document drafting: Copilot in Word can produce first drafts from bullet-point instructions, accelerating routine document production
• Email management: Copilot in Outlook summarises email chains and can draft responses in your tone — useful for high-volume matter communication
• Research synthesis: Copilot can synthesise internal knowledge across SharePoint matter files to answer questions about how similar matters were handled previously

There are important limitations. Copilot cannot access external legal databases (Westlaw, Practical Law, etc.) unless integrated separately. It will produce legally plausible but sometimes incorrect content that must be reviewed by a qualified solicitor. And it requires adequate SharePoint governance to work well — if your matter files are disorganised, Copilot will surface disorganised information.

AI-Specific Legal Research Tools

A growing category of legal AI tools specifically designed for Australian legal research has emerged, including tools that integrate with Westlaw, LexisNexis, and Jade. These tools operate within a legal research context with appropriate data handling for legal professional use.

The IT considerations for these tools in a Melbourne law firm:

• Authentication: These tools should integrate with your Microsoft 365 identity (single sign-on via Entra ID) rather than managing separate credentials per user
• Data handling: Review the vendor’s data processing terms specifically for Australian and Victorian confidentiality obligations
• Access control: Legal research tools with broad matter data access should be provisioned only to staff with appropriate matter access levels

Building an AI Usage Policy

Before any AI tool goes into meaningful use in a Melbourne law firm, a basic AI usage policy should be in place. This doesn’t need to be a lengthy document — a one-page policy that staff actually read is more valuable than a comprehensive framework nobody uses.

A law firm AI usage policy should cover:

Prohibited uses:

• Inputting client names, matter numbers, or client-specific information into consumer AI tools (ChatGPT free tier, Gemini personal accounts, etc.)
• Relying on AI-generated legal content without qualified solicitor review
• Using AI tools that have not been approved by the practice manager or principal

Approved tools and their boundaries:

• Which tools are approved for which use cases (e.g., Copilot for meeting summaries and document drafting, approved legal research AI for research tasks)
• What categories of information can and cannot be inputted into each tool

Review requirements:

• All AI-generated content used in client matters must be reviewed and approved by a qualified solicitor before use
• Staff must be able to identify and correct AI errors, particularly in legal reasoning and citation accuracy

Incident reporting:

• What to do if client information has been input into an unapproved AI tool

The Law Institute of Victoria’s cybersecurity and technology guidance is being updated to address AI, and it is likely that explicit AI usage policies will become part of the compliance documentation picture for Melbourne law firms within the next 12 months.

The Microsoft 365 Foundation Matters More Than the AI Tool

A consistent finding when Melbourne law firms start implementing AI tools is that the quality of their Microsoft 365 environment determines how useful the tools are. Firms with well-governed SharePoint libraries, consistent document naming, and proper access controls get significantly more value from Copilot than firms with chaotic file structures and sprawling email archives.

If you are planning AI adoption in your Melbourne law firm, the best investment before purchasing Copilot licences is getting your Microsoft 365 environment in order:

• Matter-based SharePoint document libraries with consistent naming
• Proper permissions ensuring each user sees only the matters they work on
• Retention policies on email and documents aligned to your record-keeping obligations
• Copilot readiness assessment to identify any sensitivity label or data classification gaps

CX IT Services deploys and manages Microsoft Copilot for Melbourne law firms, including Microsoft 365 governance preparation and AI usage policy templates. Visit our IT support for law firms hub for how AI enablement fits into our full managed IT service, or learn about our cybersecurity for law firms controls that ensure AI adoption doesn’t introduce new data risks. Book a Right Fit Call to discuss your firm’s AI readiness.