Maizie, there are only three clauses of the Magna Carta in use today and one is about the freedom of the city of London.
"Taxes and Tolls. The City obtained exemption from various taxes (scot and lot, danegeld) as well as fines (murdrum, childwite, jeresgive, scotale, miskenning). It also gained the right to pay the same tallage and aids as other citizens as well as an exemption from tolls and a maximum sum for amercements;
Judicial Rights. The City obtained the right to be tried by their own courts, that is, ‘within the walls’. Also, freedom from ‘wager by battle’ as well as the rights of infangthef, outfangthef, escheat, waifs, estrays and treasure trove. Also, certain legal rights distinct from the common law in respect of: lands, promises, debts, wills as well as orphans, apprentices, feme sole, hostlers and defamatory words. The mayor and aldermen obtained the right to be justices of the peace (JP’s) and the mayor, a justice of goal delivery and of oyer and terminer;
War and Billeting. The City obtained exemption from being compelled to provide troops for war outside the City and to be free of billeting;
Officials. The City obtained the right to appoint a mayor, sheriffs, chamberlain, common clerk and common sarjeant. Provision was also made for the annual election of aldermen;
Offices of the Mayor. The mayor obtained the offices of : escheator, bailiff of the Thames, admiral of the port of London, clerk of the market, keeper of the great beam, gauger of merchandise, outroper, coroner, registrar of pawns, custodian of Bedlam, assistant to the butler at the coronation and lord lieutenant;
Merchants and Markets. The City obtained the right to impose various restrictions on merchants as well as brokers. Also, the right to have: their own clerk of the market, courts of piepowder, market overt and freedom for purveyance. Further, the ability to impose: charges on the weighing, carriage, survey (ie. inspection) and the measurement of goods and coals;
Miscellaneous. The City obtained the right to bear maces of gold and silver. Also, confirmation of their hunting rights."
I wonder how much hunting is done within the city walls.