JUDGMENT OF OKUNOR J.
The appellant in this case was convicted of the offence of forgery. The charge on which he was tried read:
"STATEMENT OF OFFENCE
FORGERY—Section 159 of Act 29/60
PARTICULARS OF OFFENCE
JONATHAN YIRENKYI: CLERK:—For that you on 16 September 1977 at Agona Swedru in the Central Magisterial District and within the jurisdiction of this court with intent to defraud one Nana Opuni the wholesale keeper of G.N.T.C. that ten bags of flour had been authorised by the district manager of the G.N.T.C. to be allocated to one Ama Akoto did forge a chit issued by the said district manager of the G.N.T.C. to Winneba Police Training Depot for ten bags of flour on 5 September 1977 to read Ama Akoto on 16 September 1977 whereby you succeeded in detaining ten bags of flour for the said Ama Akoto."
To this charge he pleaded "Guilty with explanation" whereupon the prosecuting officer went on to give the "facts" as follows:
"The accused is an employee of G.N.T.C. (Agona Swedru) attached to the provisions wholesale headed by Mr. K. A. Amponsah as sales manager and K. B. Opuni as the wholesale keeper. Mr. Baiden issued a chit dated 5 September 1977 to Ghana Police Force—Training Depot, Winneba for supply of ten bags of flour to the depot. The flour was supplied after the sales manager and the wholesale keeper had processed the chit. The accused who was to prepare the sales invoice was absent, so one Bampoe prepared it. This was prepared vide sales invoice No. 6/A315622 dated 5 September 1977 and the supply was made accordingly. After the supply the chit which ought to be pasted on the triplicate copy of the sales invoice was kept in a loose file. The accused laid hands on the chit cut off the name of ‘Ghana Police Force—Training Depot, Winneba,’ and in its place, inserted the name Ama Akoto, Swedru.’ He also changed the original date on the chit to read 16 September 1977. He presented the chit to Mr. Amponsah, [p.554] the wholesale manager and passed it on to Mr. Opuni the wholesale keeper who sanctioned the supply of the ten bags of flour to Ama Akoto believing that it was genuinely sanctioned by the district manager. After processing the chit it was returned to the accused for supplies to Ama Akoto. On 19 September 1977 the accused supplied the ten bags of flour valued ¢320 to the said Ama Akoto. On 3 October 1977 the district manager on his routine inspection discovered the chit with a different handwriting at the top. He confronted the wholesale ma