FORENSIC PSYCHIATRY ASSIGNMENT.
TOPIC : MENTAL CAPACITY IN PSYCHIATRY: Concepts, Ethics, & the Islamic Perspective
ASSIGNMENT SUBMITTED TO : Dr Khuram Hafeez Khan.
ASSIGNMENT SUBMITTED BY : Dr Mansoor Ahmad, PGR psych, LRH Peshawar .
DATE: 29-7-2025
Mental Capacity in Psychiatry: Concepts, Ethics, and the Islamic Perspective
Mental capacity means a person’s ability to make informed decisions about their own care, health, and daily life. In England and Wales, the Mental Capacity Act 2005 (MCA) provides a clear legal framework. The MCA is built on five main principles: (1) every person is assumed to have capacity unless proven otherwise, (2) all efforts should be made to support a person in making a decision, (3) making an unwise decision doesn’t mean a person lacks capacity, (4) decisions for those who lack capacity must be in their best interests, and (5) any action taken must be the least restrictive of the person’s rights.
Under the MCA, capacity is both decision- and time-specific, meaning it can change depending on the situation or the person’s mental state at the time. A two-stage test is used:
- Functional test – Can the person understand, retain, weigh up, and communicate the information needed to make the decision?
- Diagnostic test – Is their inability due to an illness, brain injury, or mental disorder?
In psychiatry, capacity is often more complex. A patient with schizophrenia or depression may sometimes struggle with decisions, but mental illness alone does not mean they automatically lack capacity. A detailed assessment is needed, and clinicians must not judge capacity based on appearance or diagnosis alone. Importantly, mental capacity can fluctuate, such as during manic or psychotic episodes, and it must be re-evaluated regularly.
In psychiatric practice, there is often tension between respecting a patient’s choices and ensuring their safety. For example, if a patient with capacity refuses treatment (even if it seems unwise), their decision must usually be respected. However, under the Mental Health Act 1983 (MHA), a person can be treated without consent if they are at serious risk, even if they seem to have capacity. This creates an ethical conflict between autonomy and protection. The MCA leans toward autonomy and empowerment, while the MHA prioritizes safety.
In contrast, Scotland follows the Adults with Incapacity (Scotland) Act 2000 (AWIA). Both the MCA and AWIA share important principles: they presume capacity unless proven otherwise, aim to support decision-making, and emphasize acting in a person’s interests using the least restrictive option. However, there are key differences. Where the MCA refers to “best interests” as the guiding principle, the AWIA speaks of decisions being made for the individual’s “benefit.” The MCA allows for Lasting Power of Attorney and Deprivation of Liberty Safeguards, while the AWIA uses Continuing and Welfare Powers of Attorney, Guardianship Orders, and Intervention Orders. Court involvement also differs—MCA cases are handled by the Court of Protection, while AWIA decisions go through the Sheriff Court in Scotland. Additionally, Scotland does not have a direct equivalent to DoLS, handling deprivation of liberty through other legal routes. These legal distinctions reflect broader cultural and systemic differences, but both frameworks aim to protect vulnerable individuals while upholding their rights.
From an Islamic perspective, mental capacity (often linked with ‘aql or intellect) is essential for being morally responsible. Islam teaches that our body and mind are a trust from Allah (Amanah). Therefore, decisions that bring harm—like refusing life-saving treatment without a valid reason—are discouraged. Unlike the MCA, which accepts that a person may make unwise decisions if they have capacity, Islamic ethics sees harmful choices as morally blameworthy. A famous Hadith supports capacity-based responsibility:
“The pen is lifted from three: the sleeping person until he wakes, the child until puberty, and the insane until he regains sanity.”
This Hadith shows that Islamic law also exempts people from accountability when they lack mental capacity. In such cases, guardianship (wilayah) may apply—similar to the concept of best-interest decisions under the MCA.
In conclusion, assessing capacity in psychiatry must balance legal, ethical, and cultural perspectives. While Western law focuses on individual freedom, Islam adds a layer of moral responsibility and divine accountability. The comparison between the English, Welsh, and Scottish legal systems further highlights the diverse yet overlapping ways societies aim to safeguard autonomy while protecting the vulnerable.
References:
- SCIE, Mental Capacity Act 2005: At a Glance (2020)
- uk, Consent and Capacity
- Department of Health, Mental Capacity Act Code of Practice (2007)
- Sunan Abu Dawood, Book of Hudud, Hadith # 4402
- Qutaiba S. Chaleby, Forensic Psychiatry in Islamic Jurisprudence
- Adults with Incapacity (Scotland) Act 2000, Scottish Government.


