Chapter 1206

Two hours later, Cui Qishan returned.

At this time, the tea in front of Jiang Yuan had already been changed to coffee. Beside him, Wei Shikan was still grinding with a hand grinder while saying "purple dog, purple dog".

Cui Qishan's face was not good, and he opened his mouth to say: "It really became the Eastern Express."

Liu Jinghui's mouth corner twitched, looking not surprised at all, and said: "Tell me in detail."

Cui Qishan sighed: "The wives of two married men both provided alibis for their husbands. For those with children, we also specifically asked, and they were all at home on the day of the incident."

Although alibis given by close relatives have weak evidentiary value, under detailed questioning, the criminal police team needs to consider this possibility.

Cui Qishan continued: "Moreover, regarding the motive issue raised by Director Liu, both men admitted that on the day Martina arrived, they accepted her invitation to drink together and had relations.

The two corroborated each other, making the probability of perjury relatively low. Most importantly, after hearing about the murder case, both straightforwardly admitted to infidelity, which undermines the theory of 'killing to conceal infidelity'.

Jiang Yuan, Liu Jinghui, and others all understood the crux, and nodded lightly.

Based on Cui Qishan's current investigation, the suspicion level of these two men has already become very low.

Cui Qishan finally concluded: "In this way, among the four people whose footprints were found in Martina's apartment room, the two identified male residents are likely to be cleared of suspicion. As for the other two, we are checking through surveillance footage and inquiring with Avia Aviation personnel. These foreigners are not very cooperative, and may need some more time.

"Do they have facial recognition data from border inspection?" Liu Jinghui asked.

"The clarity is insufficient. Because they were all taken at night, and none are frontal." Cui Qishan said while looking at Jiang Yuan.

"Image enhancement is also slow to do, and if it's not frontal, it may not even be comparable." Jiang Yuan said while standing up, saying: "I plan to go to the scene first. You can first ask that Avia Aviation director; I'll get in touch with him, and he should be reasonable. If not, I'll help you with image enhancement."

"Is it appropriate to directly approach Avia's senior management?" Cui Qishan reminded briefly.

In terms of social experience, Cui Qishan is three levels higher than Jiang Yuan, not to mention more, but his strength is limited, so he cannot freely shift and transfer.

Just from listening to Jiang Yuan's words, Cui Qishan knew that Jiang Yuan wanted to use the merger of the Avia Aviation crash case and Martina's murder case to threaten the Avia Aviation director, so as to get the cooperation of Avia Aviation staff.

Merging cases during the investigation stage, saying it's easy is easy, but the Avia Aviation director is obviously not a novice; that old man has his own background and supporters.

When dealing with such people, criminal police of Cui Qishan's level mostly hope for a smooth resolution. If merging cases is natural, then it's the merging case argument; if it's just intimidation, then it's not necessary either.

Jiang Yuan then looked at Wei Shikan.

He hasn't studied this much, but he thinks Wei Shikan should have some understanding.

Wei Shikan indeed ground with his hand grinder and said: "For Captain Jiang's words, making a phone call should be fine. Whether to offend or not, it's just like that anyway."

Jiang Yuan then called Stefano on the spot.

This 69-year-old director of Avia Aviation, upon receiving Jiang Yuan's call, indeed had little nonsense and readily agreed, finally simply calling the person back to the apartment for convenience of questioning.

Naturally, he also did not want his subordinates to be called one by one to the police station for questioning.

Jiang Yuan and Cui Qishan et al. then went together to Avia's apartment building.

Liu Jinghui was very excited, got in the car, and the smile on his face couldn't stop: "Changing Eastern Express to Avia Apartment is acceptable, quite good!"

"It has already been proven that it's not personnel from within Avia Apartment." Wei Shikan held coffee and accompanied from the side, saying a sentence.

"The victim's apartment room having no their footprints does not mean they didn't participate." Liu Jinghui pouted his lips and said: "It's possible they were lucky and left no footprints, or possibly they deliberately wiped them away. Or…… if someone was hidden in the apartment in advance and later released, that's also a method."

Liu Jinghui paused slightly, then said: "The word 'emotion' is hardest to speak of; if it's a crime of passion, even without help, one could sneak in two days earlier, hide in places like equipment rooms, and then come out following the fire escape up and down……

Liu Jinghui: "If there's no pry mark on the door lock, that indicates familiarity…… but not necessarily, maybe one can trick the lock open……

Others in the car remained silent, letting Liu Jinghui's thoughts wander.

What he said are all possibilities; cannot say there are none, only say that reasoning stories have their own world. And given the current situation, the police indeed have not checked surveillance footage from two or three days ago.

In fact, checking the surveillance footage from that evening alone is already very troublesome, and still requires Jiang Yuan to call Avia's director, expanding the scope, after which so many foreigners entering and exiting make facial recognition difficult, especially at night surveillance; objectively speaking and without racial discrimination, many Black faces are indeed hard to recognize.

Unless the severity of this case increases, entering the level of comprehensive screening, the special task force still needs to treat video surveillance as the main direction, only then can they mobilize massive manpower to review all surveillance from the previous days, and then analyze and compare them one by one.

So saying, why foreigners dislike installing surveillance, given their true level of investment in police forces, it truly lets them concentrate over a hundred people on one case, staying up all night to watch surveillance…… even if they could really organize this many people, staying up all night is something they find difficult to do.

Moreover, facial recognition, gait recognition, and similar technologies require collecting corresponding human biological characteristics; most countries neither have such technology and technical reserves, nor corresponding judicial and judicial reserves.

Like Myanmar or Yibanli such countries, demanding them to invest in surveillance equipment and facilities at the billion level, and invest in corresponding databases and surveillance systems at the ten-billion level, then train and add image-detection police at the ten-thousand-person standard, finally when a concrete case arrives, to conduct surveillance reading for thousands of hours at the hundred-person level, is utterly beyond human capability.

It can be said that the development of world criminal investigation technology, especially Chinese-style criminal investigation technology, is a template that most countries cannot copy, but the development of world crime technology is not subject to the will of small nations.

Such as submarine and drone drug trafficking, 3D-printed non-metallic firearms, endlessly emerging new explosives and new drugs, the already-scaled darknet system and cryptocurrency trading…… only a few countries can respond comprehensively.

Therefore, in the real world, the decline in public security is universal; like Europe's lamentable theft and robbery being merely the surface, its inability to maintain goes far beyond public security. On the contrary, the United States, being able to maintain public security without regression, itself represents a considerable degree of progress.

And for the criminal police of the current Guangju Bureau and Ningtai County Bureau, trying the simple mode, assuming the case is an ordinary case, is the most reasonable choice.

Until……

In the afternoon, Cui Qishan brought back news that was disheartening to some and exciting to Liu Jinghui:

"Through questioning the residents of Avia Apartment, the identities of all people entering and exiting within two days have been confirmed. After making phone calls in sequence, the identities of the other two have also been confirmed: one is Avia's partner, a 34-year-old Austrian; the other is a pure friend, a researcher at a Beijing research institute, Belgian, whom Martina once brought to attend an Avia party."

Cui Qishan paused slightly, then continued: "Both have alibi evidence; surveillance near their residences proves they returned home that evening and only left the next morning, and the technical investigation's mobile phone location also matches."

Jiang Yuan fell into thoughtful silence upon hearing this.

Liu Jinghui said in one sentence: "All suspects have been cleared of suspicion, therefore, everyone is suspicious!"

(End of Chapter)