Which panes? Thickness, laminated safety glass (VSG), polished glass (FL), tempered safety glass (ESG), etc.?

The laminated safety glass should always be arranged on the protective side (usually inside) and not on the attack side (usually outside). The most important reason for this is that in this position, the laminated safety glass best protects the person, room, or object to be protected from injuries and splinters.

The question is whether it also helps inside against attacks from outside (break-in attempts)?

The only thing that does not help against break-ins is if the pane is standing next to it. Otherwise, it is relatively irrelevant whether inside or outside. The panes in front or behind made of "Normalglas" are no obstacle for a burglar.

So it really doesn't matter whether inside or outside when it comes to burglary protection, thanks.

What do you actually mean by "when the window is next to"?

If the pane is not installed but standing next to it. It was supposed to be a joke.

As long as it is installed professionally, it doesn't really make a difference. For the burglar, but for the protective side, it does. Just take a look at tests with different types of glass for clarification.

The laminated safety glass (VSG) should always be arranged on the protection side (usually inside) and not on the attack side (usually outside).

In the case of a burglary (ground floor), the attack would come from outside; in the case of a fall against the glass (upper floor), the attack would come from inside. I have not yet dealt with the legal aspect, but from a technical point of view I do not consider the laminated safety glass to fulfill the requirements of a fall protection.

So it really doesn't matter whether inside or outside when it comes to burglary protection,

Above all, you should understand the "S" in "VSG" as protection in the sense of "protection against splinters" – not as "protection against shattering". It is called "laminated safety glass," not "laminated burglary-resistant glass," and is by no means – even at 8 mm thickness – to be confused with the "bulletproof glass" for banks and jeweler shops. For your sense of security, the additional cost certainly delivers more than the material itself.

I was an aluminum window manufacturer; there the share of higher earners in the clientele is quite high, yet we sold laminated safety glass only in the per mille range. By the way, our windows usually had three panes, each only 4 mm thick. In my opinion, laminated safety glass is a premium-priced product for customers who would otherwise spend their money on homeopathic remedies.