[5]: 73 The next day they entered into a further treaty which prohibited Portuguese ships from engaging in the slave trade along the coast of Africa north of the equator.
[5]: 79 Over two years later on 28 July 1817 an Additional Convention was added which included the first provision for Mixed Commissions formed of an equal number of individuals of the two nations.
While the treaty allowed Portuguese slave traders to continue their business south of the equator, the trade was forbidden to the north.
The £300,000 mentioned in 1815 had not been paid, but the British agreed to pay it in two instalments of £150,000, as well as 5% interest since the earlier convention in January 1815.
The Mixed Commission Court in Freetown sentenced in total 22 Dutch vessels during its existence between 1819 and 1862.