  Contrary to Bell scenario, quantum nonlocality can be exploited even when all
the parties do not have freedom to select inputs randomly. Such manifestation
of nonlocality is possible in networks involving independent sources. One can
utilize such a feature of quantum networks for purpose of entanglement
detection of bipartite quantum states. In this context, we characterize
correlations simulated in networks involving finite number of sources
generating quantum states when some parties perform fixed measurement. Beyond
bipartite entanglement, we enquire the same for networks involving sources now
generating pure tripartite quantum states. Interestingly, here also randomness
in input selection is not necessary for every party to generate nonlocal
correlation.
