a record (so far)

One

Liverpool sider Riise stole about ten metres with a trow-in, Merk didn't react. Two seconds later Liverpool made their second goal. And it wasn't even a throw in for Liverpool in the first place.

Two

A Besiktas player touched the ball with his arm in the penalty box. Clearly, no doubt about it and I'm sure Merk saw it too. But The German referee waved it off.

because?

The first thing, Riise walking along the line for a while, ball in his hands, made the game faster. The whole thing was starting to get constipated, stuck midfield in a lot of wrong passes and minor fouls. Until Riise tried his luck. A good decision in hindsight.
Benayoun already scored 4-0 when the Turkish player made hands ball, so why punish them with a penalty? Maybe those were Merk's thoughts. Anyway, both - odd, but not favouring any team - decisions made the game better.