good our test found chrysanthemum dna in crystal. did you smell the cri sa chri chrysanthemum? >> nowadays by probing that dna we with actually learn potential information about the person. once we collect some dna, there's no limit to what we can learn. >> as thee crime-fighting techniques are further developed more criminals will be outsmarted . by science and by technology. what is your message to criminals? >> we are going to catch you. we are going to use science and science is getting better and better. so you might as well turn yourself in. >> needless to say we've come a long way from just drawing chalk around a body. it is disconcerting if i just brush up against something they can get my dna. there is a lot can you do. >> volunteering that information will make sure you are implicated in a crime. >> i'm curious how juries can adapt to that. kosta, you tac take a look at 3d printing. >> jewelry heart valves and tasty treats. >> great, we'll take a look at >> al jazeera's investigative unit has tonights exclusive report... >> from coast to coast... >> people selling fre

. >> here i have a chrysanthemum. we'll detect how good his technology is.ted a flower. >> cotton swab, we'll pick up whatever pollen we can from your nostrils. and whatever human dna possible. now she's going to cut off the swab into a solution where we extract the dna. what we are doing now is called vor texting. the -- fo vortexing. the tube will release the dna. >> we are back in the lab nearly 24 hours after he swabbed our noses. >> i would say kezia, you sniffed the sunflower am i right? >> yes. good our test found chrysanthemum dna in crystal. did you smell the cri sa chris ? >> yes i did. >> nowadays by probing that dna we with actually learn potential information about the person. once we collect some dna, there's no limit to what we can learn. >> as thee crime-fighting techniques are further developed more criminals will be outsmarted. by science and by technology. what is your message to criminals? >> we are going to catch you. we are going to use science and science is getting better and better. so you might as well turn yourself in. >> needless

. >> participants offered a chrysanthemum, and a prayer, for the victims. >>> people in japan are noticing a tasty trend in communities across the country. more and more so-called farm markets are sprouting up. there were 17,000 of them at last count. customers love the cheaper prices, and the fresh produce. managers of one market have found a way to ensure their apples are crisper, and greens even greener. >> reporter: every year, more than 1 million people pull in to this car park north of tokyo. this is one of japan's busiest farm markets. last year it sold over $5 million worth of produce. there's a huge variety of fruit and vegetables. all sourced from 150 local farms. the big draw is price. most items cost 10% less than in ordinary supermarkets. >> translator: there's such a great variety. i shop in many different places, but i always end up coming back here. >> reporter: the sook rhett to the market's success? great selection of produce that's literally farm fresh. nothing is left to chance. each purchase is logged and analyzed at the cash register. the data is then sent direct to s

hydrangeas, chrysanthemums, and whilst dahlias in rich, deep shades as they make their way to the baggagerea. they can access behind-the- scenes information and interviews with the artist through an audio to work. it features archival audio as well as interviews with living artists. he can be accessed on site by dialing the telephone numbers located near the artwork or by visiting the commission's web site. the public art speaks volumes of san francisco as a world-class city with world-class art and culture. for more information, visit [gavel] >> good afternoon to the san francisco board of supervisors meeting of

hydrangeas, chrysanthemums, and whilst dahlias in rich, deep shades as they make their way to the baggage area. they can access behind-the- scenes information and interviews with the artist through an audio to work. it features archival audio as well as interviews with living artists. he can be accessed on site by dialing the telephone numbers located near the artwork or by visiting the commission's web site. the public art speaks volumes of san francisco as a world-class city with world-class art and culture. for more information, visit >> hi. welcome to san francisco. stay safe and exploring how you can stay in your home safely after an earthquake. let's look at common earthquake myths. >> we are here at the urban center on mission street in san francisco. we have 3 guest today. we have david constructional engineer and bill harvey. i want to talk about urban myths. what do you think about earthquakes, can you tell if they are coming in advance? >> he's sleeping during those earthquakes? >> have you noticed him take any special? >> no. he sleeps right through them. there is no truth tha

. >> 20 bunches of chrysanthemum greens. i'll get some more straight away. >> reporter: right away she starts pulling up more of the greens. she and her husband tie them in bunches, and then rush them over to the market. this is how the market always keeps its produce fresh, by adjusting supply to meet demand in realtime. >> translator: it's really encouraging to see how much i've sold each day. it's great. >> reporter: this just-in-time supply system was set up by the market's manager yuzuru matsumoto. he has overseen a sharp rise in business. in the past five years the number of visitors has risen by over 25%. >> translator: we try to look at it from the customer's point of view, and give them the service they want. we're always looking to improve the way we do things. >> reporter: there's another factor that helps to motivate the farmers. the market lets the growers set their own prices for their produce. it takes just a 15% commission. everything else goes to the farmers. the farmers coordinate closely with the market st

i knw participants offered a chrysanthemum and a prayer for the victims. railway company in northern japan is facing a criminal complaint government officials accused hokkaido railway company of falsifying data about safety inspections. a major scandal emerged after a cargo train derailed in september transport ministry inspectors found workers had neglected track defects and failed to carry out repairs inspectors also discover the railway company had systematically falsified data on safety inspections the government says the company made false statements and altered inspection data to cover up its own negligence. police in hokkaido was set up a special taskforce to investigate the allegations. i know railway company is also known as jr hokkaido. he was born from the private sensation of national railway services in nineteen eighty seven. people in japan are noticing a tasty trend in communities across the country. more and more so called farm markets are sprouting up. there were seventeen thousand of them at last count. customers love the cheaper prices a