Further, here's the direct text from the Texas Criminal Code:

 

<p class="" style="font-family:'Courier New', arial, helvetica, sans-serif;font-size:12pt;">Art. 2.13. DUTIES AND POWERS. (a) It is the duty of every peace officer to preserve the peace within the officer's jurisdiction. To effect this purpose, the officer shall use all lawful means.

<p class="" style="font-family:'Courier New', arial, helvetica, sans-serif;font-size:12pt;">(b) The officer shall:

<p class="" style="font-family:'Courier New', arial, helvetica, sans-serif;font-size:12pt;">(1) in every case authorized by the provisions of this Code, interfere without warrant to prevent or suppress crime;

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