in place vs in situ

in place

adj

  • In an original position. 

  • In a proper position. 

  • Established; in operation. 

adv

  • Into a proper or intended position; into place. 

  • New procedures were put in place. 

  • Without changing position. 

  • Into a state of deployment or implementation. 

in situ

adj

  • in its original position or place 

adv

  • in its original position or place 

How often have the words in place and in situ occurred in a corpus of books? (source: Google Ngram Viewer )