The European Securities and Markets Authority (ESMA) has conducted a peer review on how national regulators (national competent authorities or NCAs) supervise and enforce the MiFID provisions relating to investment firms’ obligation to provide best execution, or obtain the best possible result, for their clients when executing their orders.
More information via press release: http://www.esma.europa.eu/news/Press-Release-ESMA-publishes-peer-review-best-execution-under-MiFID?t=326&o=home