**Core Concept**
In forensic medicine, various types of inquests are conducted to investigate the cause of death, but the choice of inquest type depends on the jurisdiction and the specific circumstances of the case. A medical examiner's inquest is a specialized type of inquest that involves a medical professional with expertise in forensic pathology.

**Why the Correct Answer is Right**
A medical examiner's inquest is the best type of inquest at the international level because it involves a medical professional who has undergone specialized training in forensic pathology. This expertise enables the medical examiner to conduct a thorough and unbiased investigation into the cause of death, taking into account the medical and scientific evidence. The medical examiner's inquest is particularly useful in cases where the cause of death is uncertain or disputed, as it provides an objective and evidence-based determination of the cause of death. The medical examiner's inquest also allows for a thorough examination of the body and the collection of evidence, which is essential in forensic medicine.

**Why Each Wrong Option is Incorrect**
**Option A:** A coroner's inquest is a type of inquest that is commonly used in the UK and some other countries, but it is not the best type of inquest at the international level. A coroner's inquest is typically conducted by a layperson or a non-medical professional, which may not provide the same level of expertise as a medical examiner's inquest.

**Option B:** A police inquest is not a formal type of inquest and is not used to investigate the cause of death. A police inquest is typically conducted by the police to gather information about a death, but it is not a substitute for a formal inquest.

**Option D:** A magistrates inquest is not a type of inquest that is commonly used in forensic medicine. A magistrates inquest is typically conducted by a layperson or a non-medical professional, and it may not provide the same level of expertise as a medical examiner's inquest.

**Clinical Pearl / High-Yield Fact**
In forensic medicine, the type of inquest used can have a significant impact on the outcome of the investigation. A medical examiner's inquest is the best type of inquest because it provides an objective and evidence-based determination of the cause of death. This is particularly important in cases where the cause of death is uncertain or disputed, as it helps to ensure that justice is served.

**✓ Correct Answer: C. Medical examiner's inquest**