Texas Municipal Police Association - Law enforcement support organization open to all Texas peace officers. El Paso Municipal Police Officers Association - Information and member services. Houston Police Officers' Union - Works with city officials and state legislators, to improve wages, benefits and working conditions for its members. Austin Police Association - Contact and membership information. San Antonio Police Officers' Association - Information on members involvement within the community of San Antonio. Dallas Police Association - Working for police officers of Dallas. Texas Narcotic Officer's Association - History, membership data and conference updates. Texas State Troopers Association - Lobbies the state legislature and assists troopers in times of need. Includes news, forum, and donation information.