Why did the assassination of Franz Ferdinand succeed?

One of the reasons that the Archduke was assassinated was bad planning by the authorities. One way this influenced the assassination was that the Archduke insisted that he did not appear as a threat, so instead of having army support for the tour of Sarajevo, there were only 120 policemen recruited to keep order during the parade. Furthermore, the hired driver was obviously not used to driving around in Sarajevo as when travelling to the hospital, he turned around corner and stalled the car while reversing out of the road, both of which resulted in the assassination of Franz Ferdinand. Also, the border police failed to try and stop the weapons being smuggled into the country.

It is possible that the assassination was down to chance and fate. It just so happened that the driver took the wrong turn onto Franz Josef Street and that the car stalled. It was also extremely lucky for Princip that he went to the correct sandwich shop and exited at the correct time when the car had stalled outside the shop.

The assassination was possibly down to the well-planned attack by the Black Hand killers. The plan was very well made, as everyone knew their job, and the weapons were smuggled into Bosnia very skilfully and inconspicuously. However, the members of the Black hand assassination group were far from well trained killers, as one of the members had never handled a gun before. In addition, the first assassin along the road was afraid and decided not to attack. Also, Cabrinovic forgot that the bomb he threw had a 10 second fuse before it detonated and so he threw the bomb too early. And while it is true that Princip at least was a skilled marksman, the majority of the group had no previous experience of such scenarios.

In conclusion my opinion is that the deciding factor of the assassination of Archduke Franz Ferdinand was the inadequacy of the authorities, as they had so many different methods of stopping the Black hand from executing the plan, such as enforcing the streets with soldiers, preventing the smuggling of weapons and hiring a better driver. And while fate played a big part in the scenario, a more experienced driver would have prevented that all together and the majority of the group were not experienced at all so that is why, for me, the authorities are to blame for the assassination.