growth of the ICL. The ICL is often found to be more concentrated around the central galaxy in a cluster [@Mihos2005; @Rudick2011]. This in turn implies that the formation and evolution of BCGs and the ICL are connected to one another.

The recent simulation of [@Laporte2013] predicts that 30 per cent of a companion galaxy’s mass will be distributed into the ICL during a merger with the BCG [see also @Conroy2007; @Puchwein2010]. This brings the model’s predicted BCG mass growth over $0 < z < 1$ into better agreement with the observed stellar mass growth estimates of @Lidman2012 [@Lin2013; @Burke2013] in the same redshift range. If we are to believe that some fraction of the merging mass ends up in the ICL, then this presents us with a scenario that the ICL is being built-up through galaxies that are interacting with the BCGs. [@DeMaio2015] however argues against this idea, stating that the ICL is being built-up by the stripping of satellite galaxies with luminosities $>0.2 \, L^{\star}$ [also see @Contini2014]. Consequently, it is clear that the growth and stellar mass build-up of BCGs and the ICL are linked, however it is not clear to what extent merger events contribute towards 