I don’t often have to wrestle this much with terminology in the MHA 1983(Amended 2007). However, I’m writing up something for patients and relatives to help them understand a few things. So I’m trying to be as accurate as possible and not confuse anybody!
I need to clarify the terms RC, AC, and RMP. This is my current understanding - and help out if I’ve gotten it wrong.
Registered Medical Practitioner (RMP)
- Any doctor registered with the General Medical Council
- The basic qualification needed to practice medicine in the UK
- Doesn’t require mental health specialisation or MHA training
Approved Clinician (AC)
- A clinician who has been specially approved for MHA purposes
- Could be a psychiatrist, psychologist, nurse, social worker, or occupational therapist
- Has received specific training in the MHA
- Has been approved by the Secretary of State (in practice, by the local approving body)
- Can take certain roles under the Act that RMPs cannot
Responsible Clinician (RC)
- Always an Approved Clinician
- Has been specifically assigned responsibility for a particular patient’s case
- Only exists for patients detained under application-based sections (S2, S3) or community patients
- Has specific powers including granting leave under S17 but only under certain sections.
An Approved Clinician becomes the Responsible Clinician when:
- They’re assigned overall responsibility for a specific patient’s case, AND
- That patient is detained under an application-based section (S2, S3) or is a community patient
An Approved Clinician is NOT the Responsible Clinician when:
- They haven’t been assigned to that specific patient, OR
- The patient is held under a report-based section like S5(2), not an application-based section
It seems to become more complex because a consultant psychiatrist might be:
- An RMP (always)
- An AC (if approved)
- An RC (if approved AND assigned to a specific patient under the right sections)
And when a patient moves from S2 to informal or S5(2) implemented subsequently, they go from having an RC to not having one, but may still have an AC or an RMP, despite potentially being under the care of the same consultant throughout!
Under S5(2), the patient:
- May have an RMP (Registered Medical Practitioner) who created the report for the holding power
- May have an AC (Approved Clinician) who’s involved in their care
- But definitely does NOT have an RC (Responsible Clinician) as defined by the Act
This creates the peculiar situation where:
- The same consultant psychiatrist could be simultaneously:
- An RMP (by virtue of medical registration)
- An AC (by virtue of approval under the Act)
- The RC for some patients (under S2 or S3)
- But NOT the RC for a patient under S5(2), even if they’re that patient’s consultant
The clinical reality (same doctor providing continuous care) completely diverges from the legal reality (patient’s status under the Act changes, along with the doctor’s legal powers).
And since S17 leave requires an RC to grant it, and S5(2) patients don’t have an RC by definition… no leave can be granted during that period regardless of the clinical appropriateness.
An Approved Clinician (AC) is a qualification - a status that a clinician has after receiving approval. This status exists independently of any specific patient.
Under S5(2), a patient may be under the care of a doctor who:
- Holds AC status (has the qualification)
- Is responsible for their clinical care
- Made the S5(2) report (which is neither an application nor a recommendation).
But the Act doesn’t create the legal role of “Responsible Clinician” for that patient, because:
- The RC designation is explicitly tied to patients detained under application-based sections
- S5(2) uses a report mechanism, not an application
So while the patient is being treated by someone who has AC status, that person is not functioning in the legal capacity of an RC for that specific patient during the S5(2) period.
I need paracetamols - no worries - no overdose today.

