Abstract
We examine variation in criminal defense work in a sample of arrest hearings in three states of Mexico (N = 186). Specifically, drawing on systematic observations, we map the explicit challenges voiced by counsel to oppose motions by prosecutors supporting the legality of detentions. We find that “instrumental” challenges are more likely when defendants are accompanied by friends/relatives, and in the presence of more proactive judges; moreover, these challenges increase the likelihood of a ruling of illegality, controlling for other factors. However, defense practices also rely on more “expressive” challenges and other strategies that weaken the adversarial model. Critically, we also find that judicial decisions are independently shaped by the level of engagement of prosecutors during hearings and the skin color of defendants—darker defendants have lower odds of having their arrests be declared illegal. We discuss these findings in the context of the literature on courtroom workgroups and pretrial justice.
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The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.
Notes
Arrest hearings are often followed by other preliminary hearings related to the same matter that were enacted as part of the reforms implemented nationwide. These other pretrial proceedings involve an arraignment (“audiencia de formulación de cargos”), a hearing of preliminary review (“audiencia de vinculación”), and a hearing to define pretrial supervision conditions (“audiencia de medidas cautelares”) (Carrasco, 2011).
We developed a fieldwork manual for observations based on pilot instruments and feedback from local advocates and scholars. To capture the presence/absence of a defendant’s relatives or friends, observers were directed to track interventions by courtroom actors that would greet or introduce them in open court when seeking to verify ties, or when providing background information. Observers also noted behavior patterns in the audience signaling a connection to the defendant (approaching the court well, bring food, seeking to engage the defense attorney etc.). To capture a defendant’s skin tone, we used a five-tone scale with polar darker/lighter colors, and a mixed, “mestizo” category. Observed were instructed to first discard polar categories, and then to select to progressively discard others as they sought to best match their assessment with the tonal continuum provided (see Johnson & Richardson, 2018; Rengifo et al., 2019 for similar approaches). Age was assessed using a similar approach. Observation protocols were tested and refined via pilot observations and group training. Importantly, the Kappa scores for the subset of hearings coded by multiple observed revealed “substantial” convergence across items and fieldworkers (> .75).
Per statute, specific charges are revealed by the prosecutor during a subsequent hearing (arraignment or “audiencia de formulación de cargos”). The nature of these charges does not have a direct, explicit or formal bearing in the review of the circumstances leading up to the arrest. This also applies to other defendant-specific information such as prior record, place of residence, or employment status—categories that are typically reviewed during pretrial detention proceedings.
Paramed is a STATA command written by Emsley & Liu (2012) to conduct causal mediation analysis with an exposure-mediator interaction. This command uses parametric regression models to estimate the controlled direct effect, the natural direct effect, the natural indirect effect, and the total effect with standard errors and confidence intervals. These effects are derived using the delta method by default, with a bootstrap option. Since mediation models are akin to structural equation models (SEMs), factor-variable and time-series operators are not allowed, and thus coefficients for each factor analyzed cannot be computed.
The models were estimated with a total 174 observations down from a full sample of 186 because some variables had missing values, so these cases were omitted to avoid estimation bias.
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Rengifo, A.F., Avila, L. & Ibañez, D. Criminal defense work in a sample of arrest hearings in three states of Mexico: the micro-dynamics of case-level engagement, influence, and strategy. Crime Law Soc Change 79, 555–580 (2023). https://doi.org/10.1007/s10611-023-10081-2
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DOI: https://doi.org/10.1007/s10611-023-10081-2