She spent some time on the West African coast in the suppression of the Triangular slave trade.

Numa sailed in April 1808 from New York for Saint Barthélemy, which was then a Swedish colony, but arrived at Saint-Pierre, Martinique.

One month later, on 29 June, the 40-gun frigate HMS Seine captured her after a four-hour-and-twenty-minute chase off the Spanish coast.

Pierre Cézar was a fast sailer and her American mate claimed that the frigate would not have caught her had she not been overloaded.

The Navy fitted out Tigress at Plymouth, arming her with fourteen 12-pounder carronades and commissioning her in October 1808 under Lieutenant Robert Bones.

[5] Early in her time on the West African coast Tigress was involved in an attack on the French colony in Senegal in July 1809, that aimed to curtail the activities of privateers.

Tigress removed the stores from Solebay, and then cruises the Senegambian coast for several months before sailing to the Canaries for supplies.

The Vice-Admiralty Court at Sierra Leone declared both Marquis de Romana and Elizabeth as "forfeited to His Majesty for offences committed against the Act for the abolition of the slave trade".

On 12 December, her boats, together with those of the revenue cutter Harpy, Lieutenant Hugh Anderson, picked up 110 kegs of spirits at sea.

The London Gazette announced that on 15 August 1817 the monies due as a result of picking up these kegs of spirits at sea would shortly be ready for payment.

[18] The Principal officers and Commissioners of His Majesty's Navy offered the "Algerine cutter, of 229 tons", for sale at Portsmouth on 29 January 1818.