Author's Background.
Pontius Pilate (1 BC - circa AD 37) was the fifth Roman procurator of Judea (AD 26 - 36 ) under Emperor Tiberius, who sentenced Jesus to death by crucifixion. The quotes below refer to the Acts of Pontius Pilate. The existence of the Acts of Pontius Pilate is strongly supported by Epiphanius (Heresies 50.1), Justin Martyr (First Apology, A.D. 150) and Tertullian (Apology, A.D. 200). The Acts of Pontius Pilate were kept in the Roman archives as stated in the following quote.
The ancient Romans were scrupulously careful to preserve the memory of all remarkable events which happened in the city; and this was done either in their "Acts of the Senate" (Acts Senatus), or in the "Daily Acts of the People" (Acta Diurna Populi), which were diligently made and kept at Rome . . . In like manner it was customary for the governors of provinces to send to the emperor an account of remarkable transactions that occurred in the places where they resided, which were preserved in the "Acts of" their respective governments . . . we find, long before the time of Eusebius [3rd century], that the primitive Christians, in their disputes with the Gentiles, appealed to these "Acts of Pilate" . . . Thus, Justin Martyr, in his first "Apology" for the Christians, which was presented to the Emperor Antoninus Pius [A.D. 138-161] and the senate of Rome, about the year [A.D.] 140, having mentioned the crucifixion of Jesus Christ and some of its attendant circumstances, adds, "And these things were done, you may know from the 'Acts' made in the time of Pontius Pilate."