THE top civil servant in the Home Office sent a gushing email to staff praising their performance in the wake of anti-immigration riots. Home Office Permanent Secretary Matthew Rycroft congratulated the department and claimed “The last few weeks have shown the Home Office at its best”, despite the violent protests and thousands of illegal migrants entering Britain. The email, which was sent just a week after widespread disorder swept the country, was intended as a thank you to civil servants for their ongoing work. But critics said the timing of the email was inappropriate, given the immigrati…