Watt is the "common law"?

ARTICLE 1.01. SHORT TITLE
ARTICLE 1.02. EFFECTIVE DATE
ARTICLE 1.03. [1] [1] OBJECTS OF THIS CODE
ARTICLE 1.04. [2] [3] DUE COURSE OF LAW
ARTICLE 1.05. [3] [4] RIGHTS OF ACCUSED
ARTICLE 1.051. RIGHT TO REPRESENTATION BY COUNSEL
ARTICLE 1.052. SIGNED PLEADINGS OF DEFENDANT
ARTICLE 1.06. [4] [5] SEARCHES AND SEIZURES
ARTICLE 1.07. [5] [6] RIGHT TO BAIL
ARTICLE 1.08. [6] [7] HABEAS CORPUS
ARTICLE 1.09. [7] [8] CRUELTY FORBIDDEN
ARTICLE 1.10. [8] [9] JEOPARDY
ARTICLE 1.11. [9] [20] [21] ACQUITTAL A BAR
ARTICLE 1.12. [10] [10] RIGHT TO JURY
ARTICLE 1.13. [10A] WAIVER OF TRIAL BY JURY
ARTICLE 1.14. [11] [22] [23] WAIVER OF RIGHTS
ARTICLE 1.141. WAIVER OF INDICTMENT FOR NONCAPITAL FELONY
ARTICLE 1.15. [12] [21] [22] JURY IN FELONY
ARTICLE 1.16. [13] [11] LIBERTY OF SPEECH AND PRESS
ARTICLE 1.17. [14] [12] RELIGIOUS BELIEF
ARTICLE 1.18. [15] [13] OUTLAWRY AND TRANSPORTATION
ARTICLE 1.19. [16] [14] CORRUPTION OF BLOOD, ETC.
ARTICLE 1.20. [17] [15] CONVICTION OF TREASON
ARTICLE 1.21. [18] [16] PRIVILEGE OF LEGISLATORS
ARTICLE 1.23. [20] [19] DIGNITY OF STATE
ARTICLE 1.24. [21] [23] [24] PUBLIC TRIAL
ARTICLE 1.25. [22] [24] [25] CONFRONTED BY WITNESSES
ARTICLE 1.26. [23] [25] [26] CONSTRUCTION OF THIS CODE
ARTICLE 1.27. [24] [26] [27] COMMON LAW GOVERNS


http://tlo2.tlc.state.tx.us/statutes/cr.toc.htm