i'm keith mathews with the police department and as julian said i help coordinate the mta, d.p.t.s traffic engineering safe passage program. it's based on the enforcement and education of the regulations of san francisco traffic code 194 point 3. these are regulations basically that pertain to anyone working in the streets and sidewalks of san francisco. anything from plain general construction sites to perhaps moving companies or any type of change in the path of travel for either pedestrians or vehicular traffic or bikes or any type of traffic with buses, cars, trucks that may effect the normal and every day stream engineers out there on the street scrapes. i have an enjoyable portion. what i take care of mostly is coordinating the education efforts of our program, we currently offer a free seminar. the - now it's the first tuesday of each month at mill ton works auditorium and we insight yi one related to the activities to the streets and sidewalks to come on in. we do a power point and try to educate on the regulations and how they were formed and let them know these are regulations ba

so joining me today are officer keith mathews from the police department who is responsible for the spot program, safe passive travel and education and enforcement around construction sites. representing the police department and traffic company also known as company -k we'll have sergeant pat toben rather than sergeant that's off trafficking the torch today. tough day for the police department. we're also joined by mary holland the m.t.a's parking enforcement agency. she's been with the city since 1979 when she started as a parking patrol officer and assists in the management of day-to-day operations of her division, planning and a ministering work and activity office senior parking patrol officers and officers engaged in parking enforcement and intersection control. last but not least we're joined by deputy or sorry, district attorney paul henderson that will help understand the enforcement related of prosecution of collisions. so, mary, please begin. >> good morning. as julian said i'm mary fo a lo on the security and enforcement division. in ours we have 271 parking patrol officers.