Jack: Yes.. but seeing as they often close ranks it's hard to prove.

It took the murder of Stephen Lawrence for it to become publicly acknowledge that the Metropolitan Police were institutionally racist.

To quote... "the collective failure of an organisation to provide an appropriate and professional service to people because of their colour, culture or ethnic origin", which "can be seen or detected in processes, attitudes, and behaviour, which amount to discrimination through unwitting prejudice, ignorance, thoughtlessness, and racist stereotyping, which disadvantages minority ethnic people"