I can't really describe what it should look like to you, but-
There is a walkthrough available for this game.
BF have walkthroughs on their site for nearly all standard version games-
Click
community at top of page in blue band.
If it is a newer released game, then the link for the walkthrough will be under the recent game walkthroughs section on the
right of the screen.
If the game you want is not there click on
see more walkthroughs at the bottom of the recent game walkthroughs section.
Click on the letter corresponding with the first letter of the game title you want the walkthrough for.
Scroll through list to find your game- most of them are there.
This walkthrough is there and I have scrolled through to find the solution picture that you want, so it is definitely there.
You can click on 'Chapter 2- The City' at the beginning of the walkthrough, which will automatically take you to the part of the walkthrough where this chapter starts, It just means that you only have to scroll through one chapter to find the bit you want, rather than the whole walkthrough.
You should be able to find it pretty easily as it is in a very obvious picture of the suitcase lock.
Good luck and happy gaming