The Treaty of Waitangi was signed in 1840 and was an agreement between the British crown and a large number of Maori chiefs. Today, the treaty is widely accepted as a constitutional document that establishes and directs the relationship between the Crown in New Zealand (embodied by our government) and the Maori. FitzRoy`s successor, George Grey, was appointed governor in 1845. He saw the protectors as an obstacle to the acquisition of land and replaced them with new officials whose objectives are not boldly to protect the interests of the Maori, but to buy as much land as possible.  Grey restored the Crown`s right of preemption in 1846 by circumventing the Native Land Purchase Act, which contemporary writers considered « the first step towards a negation of the Treaty of Waitangi. »  This regulation also strengthened state control over Maori land, which prohibited Maori from leasing their land and limiting the production of timber and flax.  A High Court Case in 1847 (R v Symonds) upheld the crown`s pre-emption right and authorized Grey to renegotiate transactions made under Fitzroy`s waiver of the preemption clause.   Governor Grey began to buy large areas of Maori before colonization at low prices, then sold it at higher prices to settlers and took advantage of the difference to expand access to land (roads and bridges).   Donald McLean was Grey`s mediator and negotiator, and by 1840 he was aware that the Maori had no concept of selling land in the British sense.  Soon the crown became disenchanted and less inclined to sell, while the crown was under increasing pressure from the settlers who wanted to buy.  As a result, state agents participated in a series of questionable land purchases, sometimes agreements were negotiated with a single tribal landowner and, in some cases, land was purchased by the wrong people.  The South Island was purchased in 1860 in several department stores, and while many sales contained provisions of 10 per cent of the country made available to the inhabitants, these lands were not respected or converted into much smaller quantities.  In some cases, Grey or his employees harassed the owners for sale by threatening to evict them with troops or employ rival chiefs to do so. The Maori text and the English text differ considerably in their importance, particularly with regard to the importance of sovereignty and dethroning sovereignty. These differences led to differences of opinion in the decades following the signing and ultimately contributed to the New Zealand wars from 1845 to 1872. The Hui was due to resume on 7 February, but some Maori wanted to leave a day earlier, so Hobson hastily agreed that the contract could be signed. He did not allow any further discussion, although Bishop Pompallier Hobson received oral approval of religious tolerance for all, including the Maori. Hone Heke decided to sign, and more than 42 Rangatira followed and added their personal names or marks to Te Tiriti o Waitangi`s parchment sheet.