Applying the Mental Capacity Act Effectively in Acquired Brain Injury Support

The Mental Capacity Act is central to safeguarding practice in acquired brain injury services, yet it is frequently misunderstood or applied inconsistently. Capacity in ABI may fluctuate, be decision-specific and change over time. Commissioners and inspectors expect providers to evidence lawful, proportionate MCA application that supports autonomy while managing risk.

This article focuses on applying the Mental Capacity Act in ABI services. It should be read alongside Safeguarding, Capacity, Risk & Vulnerability and Positive Risk-Taking & Risk Enablement.

Why capacity is complex in ABI

ABI can impair insight, memory and executive function without removing all decision-making ability.

Commissioner and inspector expectations

Expectation 1: Decision-specific assessments. Inspectors expect capacity to be assessed per decision, not globally.

Expectation 2: Least restrictive practice. Commissioners expect MCA use to promote autonomy.

Operational example 1: Decision-specific capacity assessments

Staff assessed capacity separately for finances, health decisions and community access.

Supporting capacity wherever possible

The MCA requires active support to enable decision-making.

Operational example 2: Adjusted communication and timing

Capacity assessments were supported through simplified information and optimal timing.

Recording and evidencing MCA practice

Clear documentation is essential for assurance.

Operational example 3: MCA audit reviews

Providers audited MCA records to ensure lawful application.

Evidencing compliant MCA practice

Providers should evidence:

  • Decision-specific capacity assessments
  • Recorded best-interest decisions
  • Least restrictive safeguards

Why MCA compliance protects people and providers

Effective MCA practice underpins safeguarding, rights and lawful decision-making.


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Written by Impact Guru, editorial oversight by Mike Harrison, Founder of Impact Guru Ltd β€” bringing extensive experience in health and social care tenders, commissioning and strategy.

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