Which preposition to use with checkings

of Occurrences 9%

that a great part of the nervous instability which affects our generation is due to the thwarting and checking of the natural impulses of early years.

by Occurrences 3%

As a matter of fact it is the lawyer-politicians, split by factions that simulate the ancient government and opposition, who rule, under a steadily growing pressure and checking by the Press.

Which preposition to use with  checkings