 Both the Constitution and the Penal Code contain provisions that prohibit "ex post facto" laws and violations of due process.In addition, the Constitution requires judicial warrants for arrest, detention, search, or seizure, except where a person suspected of a crime is caught "in flagrante delicto" or where a person suspected of a sufficiently serious crime poses a risk of escape or destruction of evidence, in which cases an "ex post facto" warrant may be issued.Additionally, no criminal suspect may be tortured or compelled to testify against himself.