11. Spurius Ligustinus received the promotion of Primus Pilus ( First Centurion ) of the First Legion. 12. Neither of the cases in which Pilus was accused of faking fingerprint evidence made it to trial. 13. As Praefectus Castrorum he would have served as Primus Pilus of II Augusta or another prime legion. 14. Only one end binds to the F pilus and can inject the DNA into the host cell. 15. London said Roth had wanted Pilus to provide information against another Troop F investigator suspected of faking evidence. 16. During that 14-month period, Lishansky faked evidence in 14 cases and Pilus in 1 case. 17. There was little difference between the ranks of centurions except for the " Primus Pilus ". 18. The " primus pilus ", the chief centurion of the legion, has no clear parallel. 19. The most senior centurion of the legion was the " Primus Pilus " who commanded the first century. 20. If convicted of all counts, Pilus faces up to seven years in prison, said his lawyer, Stuart London.