In an interview with ITV News, Christopher Jefferies said the letter of apology from Avon and Somerset Police was the "equivalent" to apologies he received from a number of newspapers.
Mr Jefferies added that the apology acknowledges "distress" caused not only to him, but friends and members of his family.
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Matalan said: "It is with great sadness we can confirm...both victims worked at our Cardiff branch."
Police believe a tree currently growing near the farmhouse where the 21-month-old toddler was last seen in 1991 was not there at the time.
The 21-year-old was using a portable toilet in Sydney when he was bitten near to the same area as in a previous incident in April.