Was the robbers tunnel in great pyramid of Giza dug to imprizon or for them get inside through?

There is no evidence to suggest that the Robber's Tunnel in the Great Pyramid of Giza was dug for the purpose of imprisoment or for anyone to gain entry into the pyramid.

The Robber's Tunnel is believed to have been dug as a means to gain access to the burial chambers of the pyramid in order to loot its treasures.