[2] The next year she came under the command of Lieutenant John Sibrell, who had just transferred from the hired armed cutter Duchess of Cumberland, and who sailed her amongst the Channel Islands.

On 3 August 1805, Piercer was in a squadron with Blazer, Basilisk, Tigress, Bold, Ariadne and Furious when they captured the Frederick Wilhelm.

[6] On 15 October Piercer was in company with Snake and Leyden at the capture of the Danish brig Narhvalen and so later shared in the proceeds.

Indefatigable captured two French chasse marees, the Camilla and the Bonne Rencontre, on 6 May 1810; Piercer and Scipion were in company.

[10] Piercer and the gun-brig Constant were in company with Surveillante when on 23 June she captured the chasse marees Margaret and the Eclair.

On the 27th, Conquestador and Colossus sent 120 men in six boats to attack a French convoy sailing along the shore in the Basque Roads.

The French reported capturing 113 men, perhaps including five British sailors who were killed, two who died soon after, and several who were dangerously wounded.

[19] On 10 December 1812 Piercer was in sight, and so shared in the prize money, when Arminde captured the chasse maree Civilité.

[20] On 9 March 1813, Piercer recaptured the brig King George, of 100 tons (bm) and five men, which had been captured while sailing from Dublin to Newport.

[a] Desiree arrived at Cuxhaven from Bremerlehe on 28 November to join the squadron that Shamrock, Captain Greene, had gathered.

The French surrendered 26 heavy guns, two 13" mortars, and a blockhouse with a garrison of three hundred men and officers, all of whom became prisoners of war.

[22] From late December 1813 Farquhar's squadron, comprising Desiree, Hearty, Blazer, Piercer, Shamrock, Redbreast, and eight gun-boats (the seven from Cuxhaven plus No.

12), supported Swedish forces under the command of General Baron de Boye against the Danes in the attack on the town and fortress of Glückstadt at the Elbe river during the War of the Sixth Coalition.

[26] On 4 June 1814, George III's birthday, Piercer was transferred in an official ceremony to the Kingdom of Hanover, following an Admiralty Order of 29 March.

Piercer thus became the only warship in the rather short history of the newly created kingdom (1814 – 1866) and she served as a customs guard ship on the river Elbe with Stade as her homeport.

[d] Deetjen's successor was Major Carl August Delius, who had served with the British at the Battle of Talavera, where he had lost an arm.