<Tr> <Th_colspan="2"> Laws applied </Th> </Tr> <Tr> <Td_colspan="2"> U.S. Const . Amend . XIV; Tex . Code Crim . Proc. arts . 1191--94, 1196 </Td> </Tr> <P> Roe v. Wade, 410 U.S. 113 (1973), is a landmark decision issued in 1973 by the United States Supreme Court on the issue of the constitutionality of laws that criminalized or restricted access to abortions . The Court ruled 7--2 that a right to privacy under the Due Process Clause of the 14th Amendment extended to a woman's decision to have an abortion, but that this right must be balanced against the state's interests in regulating abortions: protecting women's health and protecting the potentiality of human life . Arguing that these state interests became stronger over the course of a pregnancy, the Court resolved this balancing test by tying state regulation of abortion to the third trimester of pregnancy . </P> <P> Later, in Planned Parenthood v. Casey (1992), the Court rejected Roe's trimester framework while affirming its central holding that a woman has a right to abortion until fetal viability . The Roe decision defined "viable" as "potentially able to live outside the mother's womb, albeit with artificial aid ." Justices in Casey acknowledged that viability may occur at 23 or 24 weeks, or sometimes even earlier, in light of medical advances . </P>

The supreme court decision in roe vs wade was based on the constitutional principle of