British Naturalisation podcast

The latest podcast in TNA's series to be posted is "Naturalisation and alien registration"
Using records at The National Archives, this talk examines the various Alien Acts that affected the status of foreigners resident in the UK from the 19th century, and the reasons why so many chose to become naturalised British citizens.

After listening to it I did a search for the naturalisation documentation of one of my Dutch immigrant ancestors and found it, or at least an index entry. Getting the actual documentation requires ordering an estimate online. Apparently the documentation includes a report on a police investigation.