"England & Wales, Crime, Prisons & Punishment, 1770-1935 ", database with images, Findmypast (http://findmypast.co.uk : accessed 21 January 2018) entry for Griffith Roberts 17 Jan 1881 Carnarvon Court; citing A Calendar Of Prisoners Tried At The Assizes series HO140. The National Archives, Kew, London.

Text from source:

No Name Age Trade Degree of Instruction Name and address of committing magistrate Date of Warrant When received into custody Offence as charged in the commitment When tried Before whom tried Verdict of the Jury Particulars of previous convictions charged in the Inditement and proved in Court Sentence or Order of the Court
3 Griffith Roberts (admitted to bail 12th January 1881 43 Stone mason R ... 8th January 1881 8th January 1881 Did on the 1st day of January 1881 at the Parish of Llandwrog feloniously steal take and carry away one Gander the property of Margaret Hughes Not arraigned upon this charge
Further charged with stealing on 1st day of January 1881 one Duck the property of one Thomas Williams 18 January 1881 18 January 1881 Guilty of Larceny Twelve months H.L.
Handwritten notes beneath his name:
13th October 1870 C'von Petty Sessions
Larceny, 3 months H.L.
19th March 1878 C'von Assizes
Wounding. Nine calendar months H.L