RT Article T1 Preventing treatment spillover contamination in criminological field experiments: the case of body-worn police cameras JF Journal of experimental criminology VO 15 IS 4 SP 569 OP 591 A1 Ariel, Barak A2 Sherman, Lawrence W. 1949- A2 Sutherland, Alex LA English YR 2019 UL https://krimdok.uni-tuebingen.de/Record/1748602861 AB A central issue in experiments is protecting the integrity of causal identification from treatment spillover effects. The objective of this article is to demonstrate a bright line beyond which spillover of treatment renders experimental results misleading. We focus on a highly publicized recent test of police body cameras that violated the key assumption of a valid experiment: independence of treatment conditions for each unit of analysis. K1 Body-worn cameras K1 Unit of randomization K1 Spillover effects K1 SUTVA K1 Interference K1 Partial interference K1 Experiments DO 10.1007/s11292-018-9344-4