[4] He agreed to be interim Superintendent of Police in Chicago in late 2019 while the city searches nationwide for a replacement for retiring Eddie Johnson.

On April 15, 2020, Beck stepped down and was replaced by former Dallas Police Department Chief David Brown, who had been nominated by Lightfoot to serve as permanent Superintendent.

"[15] On April 17, 2015, California Attorney General Kamala Harris announced a statewide program of anti-bias training for law enforcement officers.

LAPD spokesman Josh Rubenstein stated that "Beck assigned a security detail for US Senator Kamala Harris shortly before she was sworn into office in 2017, based on a threat assessment he believed to be credible.

[19] On November 8, 2019, Chicago's mayor, Lori Lightfoot appointed Beck as the city's interim superintendent, to commence upon the retirement of incumbent Eddie Johnson.

[5] On April 2, 2020, Beck was replaced by former Dallas Police Department Chief David Brown as Superintendent.

[21][22] In 2016, Beck made a cameo appearance on Real Housewives of Beverly Hills when he ran into Erika Jayne and her husband Thomas Girardi while having lunch.

[23] In 2018, Beck appeared in a cameo role as Police Chief in the music video When the Seasons Change by Five Finger Death Punch.