Although Abbas has become a tiger without claws, he is still a scheming fox in his heart, and from Qin Jin's question alone, he roughly deduced that the anomaly in the city last night may be related to spies.

However, as an iron-fisted governor, he also had a headache about spies, and even felt helpless for a while.

But Abbas will not admit his incompetence to Qin Jin, he will only avoid the important and choose a few practical examples to show his original prevention and disposal methods for spies.

The method of prevention is actually very simple, which is to control the population information in the city, divide the city into several small areas, and then the officials are responsible for monitoring, and once they find any abnormalities, they will report them at different levels, and then the city hall will respond quickly.

Any spy caught in this way will be immediately executed after a simple trial, so as to increase the deterrent effect.

In addition to this, an even more severe system of joint sitting was also implemented in Mulu Castle, and the inhabitants of the city, whether officials or nobles, were expelled or confiscated of their property if they were found to be in collusion with spies, and they were punished as slaves, or even sat to death in the worst cases.

In this way, serious problems of conspiracy are rare, but those hidden conspiracies have never been quelled or reduced, and there are always people who are not afraid of punishment and take risks for certain purposes.

After doing this, Abbas had no better way but to intensify the investigation as much as possible.

It's just that the intensity of the investigation is closely related to the manpower and material resources invested, and the long-term search and arrest will also cause the spread of panic in the city, which will still do more harm than good in the long run.

Regarding the problems encountered by Abbas, Qin Jin also thought that there was obviously a clear difference between fighting a war and defending a city.

A big city is inevitably a mix of fish and dragons, and it is impossible to kill all the fish with a stick, nor can it be left to do nothing.

Abbas looked at Qin Jin, only to see that this young ruler frowned, and it seemed that it was the first time he had seen such an expression on Qin Jin's face.

Indeed, the trouble created by Li Zhong gave Qin Jin a lot of headaches, if there were always such and such conspirators planning rebellion in the newly conquered cities, it would be a problem that could not be ignored for the rule of the Shenwu Army.

How to solve this problem, Qin Jin was inconclusive in a short period of time, he was better at fighting wars and dealing with complex civil affairs, but he was still quite powerless.

As a local town guard general who started with military merits, Qin Yan probably lacks the experience and ability to deal with such problems.

Blindly using violent means to deter him is not a long-term solution, after all, this will hurt many innocent people, he is not a person with a flood of sympathy, but if he hurts the people, he will hurt the people's hearts, and hurting the people's hearts is equivalent to shaking the foundation of the rule of the Shenwu Army.

For the Shenwu Army, the foundation is everything, and without the foundation, they will be defeated and driven away from this land just like the Persians and the Great Cannibals in the past.

If you don't want to repeat such a fate in a short time, you have to make a change, but how to change it is still unknown to Qin Jin.

Abbas failed to give Qin Jin more good advice, and he was also a lackluster tyrant in terms of internal rule, and he did not meet the standards that Qin Jin needed.

It wasn't all bad news on this day, as unexpectedly, the cavalry sent out to quell the rebellion won a battle, and a rebel army of more than 20,000 men was annihilated, thousands beheaded, thousands captured, and a rebel commander was captured.

Most of the rebel soldiers were Sogdians who belonged to the Shi Kingdom, but the commander was a Tang man surnamed Guo.

This man was badly wounded in the battle, so he was unable to break through and was forced to become a prisoner.

Qin Jin's staff members were very excited, and according to the information they had, the supporters around the deposed prince Li Yu had Guo Ziyi, who had always been the envoy of the festival when Tubo captured Chang'an.

Later, during the Battle of Hexi and the Battle of Anxi, Li Yu also intervened, and Guo Ziyi played a great role in it.

However, since Chang'an, all of Guo Ziyi's deeds have only been legends from the mouths of others, and they have not been seen with their own eyes, and there has been no way to confirm whether they are true or false.

Now, the leader of the rebel army surnamed Guo who has captured may have a lot to do with Guo Ziyi. Even if it is not Guo Ziyi himself, he must be his son and nephew.

Unlike the excitement of his staff, Qin Jin didn't show much excitement, because he already had mixed emotions about this matter.

Guo Ziyi was one of the most famous ministers in history, and his appearance made him the leader of the rebels, which certainly affected his personal fate, but what is even more regrettable is that the Tang Dynasty lost a minister who could be appointed as a humerus.

If you don't know that firewood and rice are expensive, it is difficult to understand the difficulty of employing people if you don't grasp the central power.

There are many people who aspire to be officials, but those who are truly capable and principled can be counted on their fingers.

Moreover, there is a deeper impact of this incident, that is, it means that there are still a large number of people of insight inside and outside the court who will sympathize with the deposed prince, and if this rebellion is not properly handled, it may have a more far-reaching and long-lasting impact in the coming decades.

Thinking of this, Qin Jin changed his itinerary plan, and he planned to continue to return east after completely disposing of the rebellion of the Shi Kingdom.

If you want to solve all kinds of overt and potential troubles caused by the deposed prince Li Yu once and for all, the most important thing is to capture him alive and bring him back to Chang'an openly.

That night, Qin Jin summoned Qin Yan and others to formally discuss this issue, and said that he would personally bring the returning Shenwu Army to participate in the encirclement and suppression.

There were about 20,000 Shenwu troops brought back by the Qin and Jin dynasties, of which about seventy percent were left in Persia and Anxi, which were the focus of the imperial court's operations, and it was necessary to leave a strong enough army to defend them.

Qin Yan was very pleased, the strength of Mulu City was still a little stretched to suppress the rebellion, and according to the requirements of the prime minister, it was necessary to capture the waste prince who lived behind the scenes, which was very difficult.

The prime minister sent 20,000 Chinese troops to support the counterinsurgency, and the troops immediately became sufficient.

The problem now is the speed and accuracy of the information, and it is necessary to confirm the whereabouts of the deposed crown prince Li Yu, and then outflank and besiege it with lightning speed to prevent him from escaping.

This is the time for the spies to show their talents, and the Shenwu Army has cultivated a large number of spies in various places during this year, including the most chaotic Sogdian departments.

"The Sogdian ministries must not be monolithic, and those remnants of the Shi State may have suitable candidates who can be bought, pick one out and talk about the conditions, and it is not impossible to talk about the establishment of the country!"