the he told —— he told rob mccallum... the next day, rob mccallum replied, in the starkest terms...nd threatened legal action, and today we have contacted them again and they say that they have no additional information. rob mccallum maintains no one should have gone in this submersible. so, that's the exchange that we have been given and seen exclusively here at the bbc. we will be getting plainmoor reaction to that a little later —— plenty more reaction to that. now, though, in the uk, a man has been found guilty of murdering a metropolitan police sergeant in a holding cell in croydon in south london. louis de zoysa's trial heard he used a revolver and handmade ammunition to kill matt ratana in september 2020. following the verdict, the police watchdog the independent office for police conduct called for hand—held metal detectors to be introduced widely in policing across england and wales. the case was heard at northampton crown court. our correspondent frances read is there for us now. yes, it was back in september 2020 that police stopped louis de zoysa on a routine stop and he

the next day, rob mccallum replied in the starkest terms.yers then contacted rob mccallum and threatened legal action. today, we've contacted the company again and they say they have no additional information. rob mccallum maintains that no one should have gone down in this submersible. if you steer away from sound engineering principles, which are all based on hard—won experience, there is a price to pay and it's a terrible price, so it should never be allowed to happen again. it shouldn't have been allowed to happen this time. so does safety stifle innovation? this sub, called the limiting factor, has made many dives to the deepest part of the ocean, the mariana trench, which lies nearly 11 kilometres down. nothing is more unique or cutting edge, but the team behind it worked with assessors to give the sub full safety certification. its pilot, victor vescovo, says this incident should change the industry. there will be requirements for safety standards in design and operation to be put in place, so the irony is almost profound, that separa

the next day, rob mccallum replied in the starkest terms. potentially placing yourself and your clients in a dangerous dynamic. ironically, in your race to titanic, you are mirroring that famous cry, she is unsinkable. oceangate's lawyers then contacted rob mccallum and threatened legal action. today we've contacted them again, and they say they have no additional information. rob mccallum maintains that no—one should have gone in this submersible. if you steer away from sound engineering principles, which are all based on won experience, dart—mac so does safety stifle innovation? safety stifle innovation? this sub —?called the limiting factor?— has made many dives to the deepest part of the ocean — the mariana trench, which lies nearly iikm down. nothing is more unique or cutting—edge, but the team behind it worked with assessors to give the sub full safety certification. its pilot, victor vescovo, says this incident should change the industry. there will be requirements for safety standards to be put in place. so the irony is almost profou

he told rob mccallum... the next day, rob mccallum replied in the starkest terms...te's lawyers then contacted rob mccallum and threatened legal action. today, we've contacted them again and they say they have no additional information. rob mccallum maintains that no—one should have gone in this submersible. no—one should have gone let's get more on this from carl nasman, our correspondent in boston, where the search was coordinated. over to you, carl. family members today have — over to you, carl. family members today have called _ over to you, carl. family members today have called for _ over to you, carl. family members today have called for a _ over to you, carl. family members today have called for a full - today have called for a full investigation into exactly what happened on that titan submersible post up these are family members of one of the british passengers on board. meanwhile, today, recovery efforts continue. about 900 miles from a rear sending efforts continue. about 900 miles from a rearsending in efforts continue. about 900 miles from a rear sendin

deep sea specialist rob mccallum told oceangate ceo stockton rush that clients could be at risk and hebeen classified by an independent body. in an e—mail sent in 2018, maccallum warned rush that: stockton rush replied: earlier, my colleague sumi somaskanda spoke to our correspondent carl nasman, who's on the scene in boston. first of all, the us and canada have announced they are launching investigations into what happened, tell us more about what they will be examining. earlier of course we heard from relatives of one of the people that was on that vessel, hamish harding, they have been calling for a full investigation into this incident, it looks like they will be getting two. on the us aside, confirming to bbc news the us national transportation safety board will be involved in an investigation into this incident which will be led by the us coast guard, and on the canadian side, the transportation board will be looking into this incident as well, they have announced they are launching a probe and they will be conducting some interviews on the ground in newfoundland, and stjohn�*s w

the next day, rob mccallum replied in the starkest terms... e's lawyers then contacted rob maccullum and threatened legal action. today, we've contacted them again and they say they have no additional information. rob mccallum maintains that no one should have gone in this submersible. our science correspondent jonathan amos has been tracking this story since the sub was first reported missing. this is a stark exchange your? it's a this is a stark exchange your? it�*s a fascinating exchange, actually. it is polite —ish, but it's also very testy indeed. we should perhaps explain who rob mccullum is, he's got a storied career in deep submersibles. he led the five deeps expedition — so this was the american adventure of the first person ever to reach the deepest points and all the world's oceans. so he certainly knows what he's talking about. and his criticism of stockton rush here, the ceo of oceangate, centres around the approach of stockton rush�*s company, the materials they are using in the titan sub, but also around this lack of a certificat

the next day, rob mccallum replied in the starkest terms: oceangate's lawyers then contacted rob maccullumtoday, we ve contacted them again and they say they have no additional information. rob mccallum maintains that no—one should have gone in this submersible. this morning, we heard from william kohnen, chairman of the us marine technology society, manned underwater vehicles committee. in 2018, he and other engineers wrote a letter to stockton rush warning of the dangers of using an uncertified craft. this was clearly preventable and we do have regulations and the issue is as an industry, we make submersibles and making submersibles here in los angeles for 30 years and some the best submarines in the world and there is order in their ways to be clever and go around things and for sure, it needs to be clear that he submersible like this and with the redoing for tourism would not be allowed in us waters and the coastguard would not allow it. it would not be allowed to work in british coastal because it would allowed to be certified, same thing in canada. and it turns out working in canada.

the partnership of hollywood stalls, ryan reynolds on rob mccallum, he has already found success in the world of english football. now they've trained the sites on formula one, racing investing in the f one c l team. the 2 styles are part of an investment group. the board bald one full chat in the teen racing and it's 2 young drivers, the football season. reynolds legality. famously sold the investment in the club rex and pay off with a dramatic championship in the 5th year of the english meetings. and it is where it takes the european championships in poland. so a true display of team spirit when belgians shop post and how much sanction took part of the 100 feet to huddled for change to stall 13 from being this point 5. it's really our tackle. the event gave me off to the countries to have less pulled up to injury 29 year old. finished the res. 19 seconds after the wind up to raise around denounced spain. but her performance and belgium 2 points and save them from disqualification. and of course, she's gone viral on social media for us. splendidly got see you're watching the, the news

the lawyers then contacted rob mccallum and threatened legal action.them again and they say they have no additional information. rob mccallum maintains that no one should've gone in the submersible. this morning, we heard from william, chairman of the us marine technology school society, and into as a teen, he and other engineers wrote a letter to stockton rush using uncertified craft. this was clearly _ rush using uncertified craft. t'i 3 was clearly preventable and we do have regulations and the issue as an industry, we make submersibles and we've been making submersibles here in los angeles for 30 years and that some of the best submarines in the world. there is order in the industry in their ways to be clever and go around things and for sure, it is to be clear that his submersible like this and what they're doing for tourism would not be allowed in the coastguard would not allow it and it would not be able to work in british coastal waters and it would've required it to be certified. sending in canada. and it turns off that they operated in intern

the next day, rob mccallum replied in the starkest terms "i think you are potentially placing yourselfour clients in a dangerous dynamic. ironically, your race to titanic is mirroring the famous idea she was unsinkable. oceangate's lawyers then threatened legal action. today, we have contacted them again, and they say they have no additional information. mccammon maintains that no one should have gone in the submersible. this morning, we heard from the chairman of the u.s. marine technology society manned underwater vehicles committee. in 2018, he and other engineers wrote a letter to stockton rush, warning of the dangers of using an uncertified craft. >> this was clearly preventable. we do have regulations. i think the issue here is that as an industry -- we make submersibles. we have been making submersles in los angeles for 30 years and they are some of the best summer rains the world. there is order in the industry. there are ways to be clever and go around things. for sure, it needs to be clear that a submersible like this, what they were doing for tourism, would not be allowed in

deep sea specialist rob mccallum told oceangate ceo stockton rush that clients could be at risk.urged him to stop using the sub until it had been classified by an independent body. in an email sent in 2018, maccallum warned rush that?"| have given everyone the same honest advice which is that until a sub is classed, tested and proven it should not be used for commercial deep dive operations. he went on "as much as i appreciate entrepreneurship and innovation, you are potentially putting an entire industry at risk. so i implore you to take every care in your testing and sea trials and to be very, very conservative." stockton rush replied? ?'i have grown tired of industry players who try to use a safety argument to stop innovation and new entrants from entering their small existing market. live now to our correspondent in boston, carl nasman. us and have announced that they are doing investigations into what happened. can you tell us what they will be doing? earlier, we heard from relatives from one person on the vessel, hamish harding, they will be two investigations on the us sid

. >> reporter: rob mccallum says rush dismissed his safety concerns. >> he took it as a personal insult threat. no one should ever take safety as a personal threat. >> reporter: now family members of the five people killed in the titan implosion are mourning their loved ones. john pashcall lost his stepfather, paul henri nargeolet. >> it means a lot that he spent his final moments near a scene in the world that meant so much to him. >> reporter: we are learning more about the navy picking up the sound of an implosion on sunday after the titan lost contact. a navy official tells cbs news that that detection was not definitive. so the search continued until the submersible's debris was found. jericka. >> jericka: roxana, thank you for all your reporting out there this week. now to some breaking news overseas. tonight security around moscow in being tightened. the russian media reports that riot police are protecting important facilities around that city. the news comes after the owner of the private russian military contractor, the wagner group, which is fighting on the side of vladimir p

leading deep sea exploration specialist rob mccallum told oceangate ceo, stockton rush, that clientsould be at risk, and urged him to stop using the sub until it had been classified by an independent body. meanwhile, tributes have been paid to the five men who were on the sub including british businessman shahzada dawood. well, shahzada dawood was a supporter of the british asian trust. richard hawkes is the chief executive of the organisation and hejoins us now. i'm sorry for your loss, richard, i'm sorry foryour loss, richard, of course i'm sorry for your loss, richard, of course it's a difficult time for friends and family of mr dawood. tell us more about him.- friends and family of mr dawood. tell us more about him. thank you very much — tell us more about him. thank you very much for— tell us more about him. thank you very much for your _ tell us more about him. thank you very much for your sympathy - tell us more about him. thank you very much for your sympathy and l very much for your sympathy and condolences. obviously all of us at the british asian trust are devastated by th

deep sea specialist rob mccallum told oceangate ceo stockton rush that clients could be at risk.ot be used for commercial deep dive operations." he went on, "as much as i appreciate entrepreneurship and innovation, you are potentially putting an entire industry at risk." "so i implore you to take every care in your testing and sea trials and to be very, very conservative." stockton rush replied... "i have grown tired of industry players who try to use a safety argument to stop innovation and new entrants from entering their small existing market." the bbc�*s north america correspondent nomia iqbal is in newfoundland where canada's set to lauynch an investigation. is in newfoundland where canada's set to launch an investigation. the transportation safety board of canada is going to investigate what happened involving the polar prince and the submersible. both are privately owned vessels, but the polar prince, vessels, but the polar prince, the mothership which launched the submersible over the weekend, is canadian flagged. so the transportation safety board is compelled to to cond