Now I find this easiest to do in a food processor but you can also place the cookies in a plastic bag and use a rolling pin to crush the cookies into a fine crumb.
Press the mixture into a pie dish, I use my finger to start by pressing the crumbs up the sides of the dish then use the bottom of a measuring cup or a glass to help tightly pack the crust into the bottom.
If you need a pre-baked crust I suggest baking it at 350F/180C for 5-7 minutes. For a no-bake pie wrap the crust and chill in the freezer for 20 minutes before using.