Other reasons as to why the killer was not caught were because the killer seemed very calm under pressure; he was able to kill in the middle of the streets where the victims lived. He had no fear of killing in the women's own neighbourhoods and was very quiet. He attracted no attention when he was killing, making very little or no noise at all. The police patrols were stepped up at the time of the murders so there would have been more police on the streets and on regular patrols, yet the killer was still able to kill the women on the streets where anyone could have seen him. After killing, the killer was able to stay very calm when he was mutilating he victim's body. The Ripper was a very clever and cunning person; he was able to play off the two competing police forces against each other. Each force had boundaries, which any of the other force was not allowed to cross when in uniform and patrolling for the ripper.
The police had no idea of how to track a serial killer, it had never been done before, and they had no idea of where to start and what was the best way of tracking him. They didn't know what methods were successful and which methods weren't. Finger printing had not yet been invented and photographing had only just been introduced. There was no such thing as forensic evidence back than either, just the clues that they found in the area of the crime and on the body. Most of the time the CID spent looking for foreigners in Whitechapel, they believed that the killer lived in Whitechapel, but was also thought that he was an outsider and only visited at the weekend. Detectives had very little experiences as the CID department had only been running for10 years. This meant that the detectives had very little experience with killers, and with the fact that there was no fingerprinting of forensic evidence this meant that there was very little that the detectives could do, they had many limitations
The methods that the killer used stopped him from ever being caught too. He was very skilled at what he did and knew exactly what he was doing. The killer only carried out the killings in the dark of the night, so as not to been seen. He was very quick and quiet, very much to the point; he managed to take the victim and lead them into a false sense of security, taking advantage of the fact that they were prostitutes and often went off with strange men. He was very quick at what he did, leaving little or no time to be caught by the police. The murdering were cold blooded and ruthless. One of the biggest reasons for the police not catching the killer is that the police force was initially created for the prevention of crime and not the solving of crime. The police had no idea how to solve crime; all of their years of experience had been in the prevention. This was their strongest point and they didn't know how to do police work any other way. The fact that they were very inexperienced in the solving aspect of police work meant that they did not know what to do, and what not to do. The first thing that the police did when they realized that they had a serial killer on the loose was to increase the number of police officers that they had on the street, this had not effect to the case and they shortly realized this and focused mainly on solving the crime instead of preventing it from happening again.
Jack the Ripper was never caught because the police were still very much in their infancy, they were inexperienced and did not have the methods that we have today of tracking down the killer. The killer left very little evidence and leads giving the police nothing to follow up. Time was wasted chasing up fake letters that were made by the general public and the papers; time was also wasted on the hunt for a foreigner that lived in Whitechapel. Police had little help from the witnesses or the doctors, as their evidence conflicted and there was no one description of the killer. The killer was skilled, quick and quiet; he used his brains in playing the two police forces off against each other causing the police to pick up nothing. The fact that they kept things from each other and were in constant competition did not help in the search either; neither did the two forces handling of certain evidence and not sharing their resources. These are the reasons as to why the police were unable to catch Jack the Ripper.