I found out !!!!
To save the game you have to use the "back button" of the phone. When you hit it, a line on the top of the screen pop up.
And you'll be able to look in your inventory .... and save/load your game.
Et voilà !!!

Thanks md5 .
But how do you save in this game when not using scummVM menu to do it ?

Hi everybody !! Sorry to post for a question but i can't find the answer. I'm playing Police Quest 1 on my phone with scummVM 1.7.0. Everythings is fine but ....i can't save the game :( . The save button is grey and i can't clic on it. I've configured the path to the save folder but nothing. Can we ...