“…A recurring observation is that responsive regulation requires careful implementation. Street-level bureaucrats, in particular, need guidance documents, training, or both, to be able to deal with the increase in discretionary space that comes with responsive regulation, and specifically with the tit-for-tat strategy (Blanc 2018). If this is not done, there is a risk of inconsistency in enforcement (Mascini & van Wijk 2009), favoritism (Zhu & Chertow 2019), abuse of process (Lewis et al 2017), uneven application of the law (O'Neill 2018), or rule ambiguity (Quilter & McNamara 2015).…”